NM Farm & Livestock Bureau v. United States Dept of Interior ( 2020 )


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  •                                                                                FILED
    United States Court of Appeals
    PUBLISH                               Tenth Circuit
    UNITED STATES COURT OF APPEALS                      March 17, 2020
    Christopher M. Wolpert
    FOR THE TENTH CIRCUIT                          Clerk of Court
    _________________________________
    NEW MEXICO FARM AND
    LIVESTOCK BUREAU; NEW MEXICO
    CATTLEGROWERS’ ASSOCIATION;
    NEW MEXICO FEDERAL LANDS
    COUNCIL,
    Plaintiffs - Appellants,
    No. 17-2211
    v.
    UNITED STATES DEPARTMENT OF
    INTERIOR; RYAN ZINKE, in his official
    capacity as Secretary of the United States
    Department of Interior; UNITED STATES
    FISH AND WILDLIFE SERVICE;
    DANIEL M. ASHE, in his official capacity
    as Director of the United States Fish and
    Wildlife Service,
    Defendants - Appellees,
    and
    CENTER FOR BIOLOGICAL
    DIVERSITY; DEFENDERS OF
    WILDLIFE,
    Intervenor Defendants - Appellees.
    _________________________________
    Appeal from the United States District Court
    for the District of New Mexico
    (D.C. No. 2:15-CV-00428-KG-CG)
    _________________________________
    Christina M. Martin, Pacific Legal Foundation, Palm Beach Gardens, Florida (Anthony
    L. François, Pacific Legal Foundation, Sacramento, California, with her on the briefs), for
    Plaintiffs-Appellants.
    Mark R. Haag, Environment and Natural Resources Division, U.S. Department of Justice,
    Washington, D.C. (Jeffrey Bossert Clark, Assistant Attorney General, Eric Grant, Deputy
    Assistant Attorney General, Joan M. Pepin, and Nicole M. Smith, Attorneys,
    Environment and Natural Resources Division, U.S. Department of Justice, Washington,
    D.C.; Frank Lupo, Of Counsel, Office of the Solicitor, Southwest Region, U.S.
    Department of the Interior, Albuquerque, New Mexico, with him on the brief), for
    Defendants-Appellees.
    John Buse, Center for Biological Diversity, Oakland, California, and McCrystie Adams,
    Defenders of Wildlife, Denver, Colorado, filed a brief for Intervenors-Appellees.
    _________________________________
    Before LUCERO, HARTZ, and MATHESON, Circuit Judges.
    _________________________________
    LUCERO, Circuit Judge.
    _________________________________
    This case involves the designation by the U.S. Fish and Wildlife Service (“the
    Service”) of critical habitat for the jaguar, pursuant to the Endangered Species Act
    (“ESA”). Plaintiffs filed suit, contending the Service’s designation was arbitrary and
    capricious. The district court ruled in favor of the Service. Exercising jurisdiction under
    
    28 U.S.C. § 1291
    , we reverse and remand to the district court.
    I
    The jaguar (Panthera onca) is a large felid found in the southwestern United
    States, Mexico, Central America, and South America. See Endangered and
    Threatened Wildlife and Plants; Designation of Critical Habitat for Jaguar, 
    79 Fed. Reg. 12,572
    , 12,573 (Mar. 5, 2014) (hereinafter “Final Critical Habitat
    2
    Designation”). The Service listed the jaguar as a foreign endangered species in 1972
    under the Endangered Species Conservation Act (“ESCA”), a precursor to the ESA.
    List of Endangered Foreign Fish and Wildlife, 
    37 Fed. Reg. 6476
     (Mar. 30, 1972)
    (hereinafter “Foreign Jaguar Listing”). After the ESA took effect in 1973, the
    Service relisted as endangered foreign jaguar populations, but did not include
    domestic ones. In a 1980 proposed rulemaking, the Service acknowledged this
    “inadvertent oversight,” stated it had been the Service’s intention to list all jaguar
    populations as endangered, and proposed adding domestic jaguar populations to the
    list. Endangered and Threatened Wildlife and Plants, Proposed Endangered Status
    for U.S. Populations of Five Species, 
    45 Fed. Reg. 49,844
    , 49,844 (July 25, 1980)
    (hereinafter “1980 Proposed Rule”). Ultimately, the agency listed both foreign and
    domestic jaguar populations as endangered in 1997. Endangered and Threatened
    Wildlife and Plants; Final Rule to Extend Endangered Status for the Jaguar in the
    United States, 
    62 Fed. Reg. 39,147
     (July 22, 1997) (hereinafter “Final Jaguar
    Listing”).
    In 2014, the Service published a final rule designating 764,207 acres in New
    Mexico and Arizona as critical jaguar habitat. Final Critical Habitat Designation, 79
    Fed. Reg. at 12,572. The area was divided into six units. Id. Units 5 and 6 are the
    subject of this litigation. Unit 5, the Peloncillo Unit, covers 102,724 acres in the
    Peloncillo Mountains in Cochise County, Arizona, and Hidalgo County, New
    Mexico. Id. Unit 6, the San Luis Unit, covers 7714 acres in the San Luis Mountains
    in Hidalgo County, New Mexico. Id. In assessing whether Units 5 and 6 were
    3
    occupied by jaguars at the time they were listed, the Service used data on undisputed
    Class I jaguar sightings1 between 1962 and 2013.2 There were Class I jaguar
    sightings in the Units in 1995, 1996, and 2006, but no Class I sightings there between
    1962 and the 1990s. Id. at 12,579-80. Nonetheless, the Service found Units 5 and 6
    “may have been occupied” by jaguars in 1972 because “[j]aguars were rare on the
    landscape and distributed over large, rugged areas,” “jaguars are cryptic and
    nocturnal by nature,” and “no survey effort was made to detect them in 1972.” Id.
    at 12,582.
    Based on this finding, the agency categorized Units 5 and 6 as “[o]ccupied at
    time of listing.” Id. at 12,592.3 It found the Units satisfied the ESA’s requirements
    for occupied critical habitat but noted there was substantial uncertainty in the finding
    1
    Jaguar sighting reports are sorted into “classes” based on the degree of
    certainty that a jaguar was sighted; the Service considers only undisputed Class I
    reports as valid records of jaguar sightings in its critical habitat designation. Id.
    at 12,579. The Service notes several disputed Class I records, id. at 12,580-81, but
    these are not relevant to our analysis because they did not occur in Units 5 and 6.
    2
    Based on a finding that the average jaguar lifespan is ten years, the agency
    stated that jaguar sightings between 1962 and 1982—from ten years before to ten
    years after the 1972 listing date—could indicate the presence of jaguars in 1972. Id.
    at 12,581. The Service also concluded that Class I sightings from 1982 to 2013 were
    relevant evidence of jaguar occupancy in 1972. Id.
    3
    The Final Critical Habitat Designation alternately stated that Units 5 and 6
    were occupied at the time of listing and that they may have been occupied at that
    time. For example, in a table describing all the units, Units 5 and 6 are in a column
    labeled “Occupied at time of listing,” but a description of the table states the column
    includes units that “may have been occupied at the time of listing.” Id. at 12,591.
    4
    that the Units were occupied. Id. at 12,587. Accordingly, it alternatively determined
    that the Units qualified as unoccupied critical habitat under the ESA. Id. at 12,582.
    Plaintiffs filed suit, challenging the designation of Units 5 and 6 as arbitrary
    and capricious. The district court concluded that although it owes deference to the
    Service on matters of scientific expertise, the evidence was insufficient to support a
    finding that jaguars occupied the Units in 1972. Nevertheless, because the Service
    alternatively determined that the Units could be designated as unoccupied critical
    habitat under the ESA, the court held the designation of the Units as critical habitat
    was not arbitrary and capricious. Plaintiffs timely appealed.
    II
    Our review of the Service’s actions under the ESA is governed by the
    Administrative Procedure Act, and we review the district court’s decision de novo.
    See N.M. Cattle Growers Ass’n v. U.S. Fish & Wildlife Serv., 
    248 F.3d 1277
    , 1281
    (10th Cir. 2001). “We cannot set aside an agency decision unless it fails to meet
    statutory, procedural or constitutional requirements, or unless it is arbitrary,
    capricious, an abuse of discretion, or otherwise not in accordance with law.” 
    Id.
    (quotation omitted).
    The ESA sets forth a procedure by which the Service designates critical habitat
    for endangered species. 
    16 U.S.C. § 1533
    . It must do so “on the basis of the best
    scientific data available and after taking into consideration the economic impact, the
    impact on national security, and any other relevant impact, of specifying any
    5
    particular area as critical habitat.” § 1533(b)(2). The ESA defines “critical habitat
    for a threatened or endangered species” as:
    (i) the specific areas within the geographical area occupied by the
    species, at the time it is listed in accordance with the provisions of
    section 1533 of this title, on which are found those physical or
    biological features (I) essential to the conservation of the species and
    (II) which may require special management considerations or
    protection; and
    (ii) specific areas outside the geographical area occupied by the species
    at the time it is listed in accordance with the provisions of section 1533
    of this title, upon a determination by the Secretary that such areas are
    essential for the conservation of the species.
    § 1532(5)(A).
    A
    As a threshold matter, we address the time at which the jaguar was “listed in
    accordance with the provisions of section 1533.” Id. The Final Critical Habitat
    Designation stated:
    While the jaguar was not explicitly listed in the United States until
    July 22, 1997, we are using the date the jaguar was listed throughout its
    range as endangered in accordance with the Endangered Species
    Conservation Act, which is March 30, 1972. Our rationale for using
    this date is based on our July 25, 1979, publication in which we asserted
    that it was always the intent of the Service that all populations of seven
    species, including the jaguar, deserved to be listed as endangered,
    whether they occurred in the United States or in foreign countries.
    Therefore, our intention was to consider the jaguar endangered
    throughout its entire range when it was listed as endangered in 1972,
    rather than only outside of the United States.
    79 Fed. Reg. at 12,581 (citations omitted). Intervenors argue that the Service was
    required to use 1997, the date of the Final Jaguar Listing, instead.
    6
    The ESA expressly requires the agency to consider occupancy at the time a
    species “is listed,” §§ 1532(5)(A)(i), (ii) (emphasis added), not at the time the
    Service intended to list it or to consider it endangered. Accordingly, we reject the
    Service’s explanation that it was “always the intent of the Service . . . to consider the
    jaguar endangered throughout its entire range,” Final Critical Habitat Designation,
    79 Fed. Reg. at 12,581. To determine whether the agency was required to use the
    1997 listing, we look to the complex regulatory history of the jaguar’s listing as an
    endangered species.
    Under the Endangered Species Preservation Act of 1966 (“ESPA”), the
    Secretary of the Interior maintained a list of “native fish and wildlife” that were
    “threatened with extinction.” Pub. L. No. 89-669, § 1(c), 
    80 Stat. 926
    , 926 (1966),
    repealed by ESA, Pub. L. No. 93-205, § 14, 
    87 Stat. 884
    , 903 (1973). The ESPA
    required the Secretary to “consult[] with the affected States” before designating
    native species as threatened with extinction. 
    Id.
    In 1969, Congress passed the ESCA. That statute required the Secretary to
    designate “species or subspecies of fish or wildlife” that are “threatened with
    worldwide extinction.” Pub. L. No. 91-135, § 3(a), 
    83 Stat. 275
    , 275 (1969),
    repealed by ESA, § 14, 87 Stat. at 903. Pursuant to the ESCA, the Service
    maintained a “U.S. List of Endangered Foreign Fish and Wildlife” at 50 C.F.R.,
    app. A. It added the jaguar to this list of foreign endangered species in 1972.
    Foreign Jaguar Listing, 37 Fed. Reg. at 6476. Because the ESCA did not repeal the
    7
    ESPA, the ESPA’s requirement for the Service to maintain a list of “native fish and
    wildlife” remained in effect.
    In 1973, Congress passed the ESA, which repealed both the ESPA and the
    ESCA. ESA, § 14, 87 Stat. at 903. The ESA requires the Secretary to maintain “a
    list of all species determined . . . to be endangered species and a list of all species
    determined . . . to be threatened species.” Id., § 4(c)(1), 87 Stat. at 887 (codified at
    § 1533(c)(1)). It eliminated the requirement for maintaining separate lists of native
    species under the ESPA and foreign species under the ESCA. As enacted, the ESA
    further provided:
    [A]ny list in effect on the day before the date of the enactment of [the
    ESA] of species of fish or wildlife determined by the Secretary of the
    Interior, pursuant to the [ESCA], to be threatened with extinction shall
    be republished to conform to the classification for endangered species or
    threatened species, as the case may be, provided for in this Act, but until
    such republication, any such species so listed shall be deemed an
    endangered species within the meaning of this act. The republication of
    any species pursuant to this paragraph shall not require public hearing
    or comment . . . .
    Id., § 4(c)(3), 87 Stat. at 888 (codified at § 1533(c)(3)) (repealed 1982).
    In accordance with this provision, the Service promulgated a list of
    endangered and threatened species in 1975, consolidating the formerly separate lists
    of native and foreign species. Reclassification of the American Alligator and Other
    Amendments, 
    40 Fed. Reg. 44,412
     (Sept. 26, 1975) (hereinafter “Consolidated
    Listing”). The agency confirmed that the ESA list “br[ought] together in one place
    all of the endangered and threatened species” previously listed. 
    Id. at 44,413
    . The
    Consolidated Listing included the jaguar (Panthera onca) and stated its “Known
    8
    Distribution” is “Central and South America.” 
    Id. at 44,418
    .4 It also included the
    original listing date of the species under the ESCA.5
    In 1979, the Service issued a notice stating that because the jaguar and other
    species had been listed only as foreign, not native, endangered species under the pre-
    ESA framework, their domestic populations were “not currently listed” under the
    ESA. Notification that the populations of seven endangered species are not currently
    protected by the [ESA], 
    44 Fed. Reg. 43,705
    , 43,705 (July 25, 1979).6 The agency
    acknowledged this “inadvertent” failure again the following year; it stated it had
    4
    We observe that in the 1978 republication of the endangered species list, the
    Service amended the Known Distribution to read, “U.S. (Southwestern) to South
    America.” Republication of the List of Species, 
    43 Fed. Reg. 58,030
    , 58,033
    (Dec. 11, 1978). In 1980, this was again amended to read, “U.S.A. (TX, NM, AZ),
    Central and South America.” Republication of the Lists of Endangered and
    Threatened Species and Correction of Technical Errors in Final Rules, 
    45 Fed. Reg. 33,768
    , 33,770 (May 20, 1980) (hereinafter “1980 Republication”).
    5
    In the column for “When Listed,” the Consolidated Listing erroneously stated
    the jaguar was listed in a 1970 rulemaking, List of Endangered Foreign Fish and
    Wildlife, 
    35 Fed. Reg. 18,319
     (Dec. 2, 1970). Consolidated Listing, 40 Fed. Reg.
    at 44,418. This appears to be a clerical error; it should have referred to the 1972
    Foreign Jaguar Listing. The entries for most of the other species listed along with the
    jaguar in 1972—the cheetah, leopard, tiger, snow leopard, ocelot, and margay—
    correctly referred to the 1972 listing. Id. at 44,418-19. The entry for the tiger cat,
    like the entry for the jaguar, erroneously referred to the 1970 listing. Id. at 44,418.
    This error was corrected between the 1979 and 1980 republications of the
    endangered species list. Compare Republication of List of Species, 
    44 Fed. Reg. 3636
    , 3639 (Jan. 17, 1979) with 1980 Republication, 45 Fed. Reg. at 33,770.
    6
    This notice stated that the Service had not consulted with the governors of
    any state, as required under the pre-ESA framework. Id. The agency stated it
    “intend[ed] to take action as quickly as possible to propose the U.S. populations of
    these species for listing.” Id.
    9
    intended to list all jaguar populations as endangered under the ESA and proposed
    amending the list of endangered species to state that the jaguar’s “Historic Range”
    was “Texas, New Mexico, Arizona, South through Central America to South
    America.” 1980 Proposed Rule, 45 Fed. Reg. at 49,844, 49,847.7 The 1980 Proposed
    Rule was withdrawn in 1982. Endangered and Threatened Wildlife and Plants:
    Notice of Withdrawal of an Expired Proposal for Listing of the U.S. Populations of
    the Thick-Billed Parrot, Short-Tailed Albatross, Margay Cat, and Jaguar, 
    47 Fed. Reg. 41,145
    , 41,145 (Sept. 17, 1982).
    Twelve years later, in 1994, the agency again proposed listing domestic jaguar
    populations as endangered. Endangered and Threatened Wildlife and Plants;
    Proposed Endangered Status for the Jaguar In the United States, 
    59 Fed. Reg. 35,674
    (July 13, 1994). In 1997, it issued a final rulemaking listing foreign and domestic
    jaguar populations as endangered. Final Jaguar Listing, 62 Fed. Reg. at 39,147.
    B
    In light of this complex regulatory history, we address whether the jaguar was
    “listed in accordance with the provisions of section 1533” in 1972 or 1997.
    §§ 1532(5)(A)(i), (ii). The statute does not directly address which time of listing the
    Service must consider in a case such as this one, in which a species’ foreign and
    7
    The list of endangered species already in effect at the time of the 1980
    Proposed Rule stated that the jaguar’s “Known Distribution” was “U.S.A. (TX, NM,
    AZ), Central and South America.” 1980 Republication, 45 Fed. Reg. at 33,770.
    10
    domestic populations were listed on different dates under different statutory schemes.
    To resolve this issue, we must first determine the meaning of the term “species.”
    The ESA offers little guidance on this issue. It does not actually define the
    term “species”; rather, it merely states that the term “includes any subspecies of fish
    or wildlife or plants, and any distinct population segment of any species of vertebrate
    fish or wildlife which interbreeds when mature.” § 1532(16) (emphasis added).8
    We therefore look to the ordinary meaning of the word “species.” “[A]bsent
    evidence to the contrary, the ordinary meaning of the words used [in a statute]
    expresses legislative intent. When Congress has used technical words or terms of art,
    the term must be given its technical or scientific meaning.” United States v. Easter,
    
    981 F.2d 1549
    , 1558 (10th Cir. 1992) (citations omitted). A “species” is defined as:
    a category of biological classification ranking immediately below the
    genus or subgenus, comprising related organisms or populations
    potentially capable of interbreeding, and being designated by a binomial
    that consists of the name of a genus followed by a Latin or latinized
    uncapitalized noun or adjective agreeing grammatically with the genus
    name.
    Species, Merriam-Webster Dict., http://www.merriam-webster.com/dictionary/
    species (last visited Mar. 3, 2020).
    The binomial designation of the jaguar is Panthera onca. See 
    50 C.F.R. § 17.11
    (h). Panthera is the genus, onca the species. The foreign and domestic
    populations of the jaguar belong to the same Panthera onca species. There is no
    8
    In contrast, almost all the other provisions in the definitions section of the
    statute state what a particular term “means.” See generally § 1532.
    11
    indication in the record that these populations would be incapable of interbreeding.
    To the contrary, the Final Critical Habitat Designation stated that the only breeding
    populations of jaguars are foreign populations. The domestic population is therefore
    comprised of individual jaguars dispersing from the nearest breeding population,
    which is in Mexico. See 79 Fed. Reg. at 12,589.
    We acknowledge that the 1980 Proposed Rule and the 1997 Final Jaguar
    Listing state that domestic jaguars were not subject to the ESA’s protections. 45 Fed.
    Reg. at 49,844; 47 Fed. Reg. at 41,145. But the question before us is what year the
    jaguar—Panthera onca—was listed as endangered for purposes of §§ 1532(5)(A)(i),
    (ii).
    We conclude that year was 1972. The foreign and domestic jaguar populations
    listed by the Service comprise one species under the ESA. That species was listed as
    a foreign endangered species under the ESCA in 1972. When the ESA was enacted
    in 1973, § 1533 provided that the ESCA list would be republished. ESA, § 4(c)(3),
    87 Stat. at 888 (repealed 1982). The entry for the jaguar species in the republished
    list referred to the original listing date of the jaguar species under the ESCA.
    Consolidated Listing, 40 Fed. Reg. at 44,418. Additionally, the 1978 and 1980
    republications list domestic ranges for the jaguar. See Republication of the List of
    Species, 43 Fed. Reg. at 58,033; 1980 Republication, 45 Fed. Reg. at 33,770. The
    current listing of endangered species includes both the Foreign Jaguar Listing and the
    Final Jaguar Listing under “Listing citations and applicable rules.” 
    50 C.F.R. § 17.11
    (h).
    12
    Our conclusion aligns with the Final Critical Habitat Designation’s finding
    that “the jaguar was listed throughout its range as endangered” in 1972. 79 Fed. Reg.
    at 12,581. It is also consistent with the legislative history of § 1532(5)(A). The ESA
    did not originally include a definition of “critical habitat.” 
    87 Stat. 884
    . That
    definition was added in a 1978 amendment. ESA Amendments of 1978, Pub. L. No.
    95-632, § 2, 
    92 Stat. 3751
    , 3751 (1978). The proponent of the amendment stated that
    a critical habitat designation “must be made at the time [a species is] placed on the
    list.” 124 Cong. Rec. S11,042 (daily ed. July 18, 1978) (statement of Sen. McClure).
    He explained the definition was a response to the prospect of human displacement if
    an endangered species were to expand out of the area it occupied at the time of
    listing, offering the example of the grizzly bear’s expansion out of Yellowstone
    National Park. 
    Id.
     at S11,043.9
    Thus, Congress intended to ensure that even if the range of a species expands,
    the Service designates critical habitat under § 1532(5)(A)(i) only for areas occupied
    at the initial time of listing. For areas unoccupied at the time of listing into which a
    species has expanded, the Service designates critical habitat under the more stringent
    9
    The definition of critical habitat appears to be modeled on language proposed
    by a representative of the National Forest Products Association, who also expressed
    concerns about the consequences of the expansion of the grizzly bear’s range.
    Endangered Species Oversight: Hearing Before the S. Comm. on Fisheries and
    Wildlife Conservation and the Env’t, 95th Cong. 726, 728 (1978) (statement of
    William Haselton, representing Nat’l Forest Prods. Ass’n). The timber industry
    representative’s proposed definition of unoccupied critical habitat referred to areas
    “essential to the continued existence of the species,” id., whereas the enacted version
    of § 1532(5)(A)(ii) discusses areas “essential for the conservation of the species.”
    13
    criteria in § 1532(5)(A)(ii). Our holding that the Service must use the initial listing
    date, not a later listing date after the jaguar’s range has expanded, is consistent with
    this intent.
    C
    Having concluded that the jaguar was initially listed as endangered in 1972,
    we turn to whether Units 5 and 6 were occupied by jaguars at that time.10 We must
    determine whether the Service’s finding that the jaguar occupied Units 5 and 6 in
    1972 was supported by “substantial evidence in the administrative record,” meaning
    “such relevant evidence as a reasonable mind might accept as adequate to support a
    conclusion.” Colo. Wild, Heartwood v. U.S. Forest Serv., 
    435 F.3d 1204
    , 1213 (10th
    Cir. 2006) (quotations omitted).
    The ESA and its implementing regulations do not define “occupancy,” and the
    Tenth Circuit has not directly addressed how the term is defined. Plaintiffs contend
    that “occupy” is synonymous with “reside.” We disagree. A species “occupies” an
    area if it “uses [the area] with sufficient regularity that it is likely to be present during
    any reasonable span of time.” Ariz. Cattle Growers’ Ass’n v. Salazar, 
    606 F.3d 1160
    , 1165 (9th Cir. 2010). “Determining whether a species uses an area with
    10
    Plaintiffs appear to contend the Service forfeited the argument that jaguars
    occupied Units 5 and 6. Because the district court ultimately entered judgment in the
    Service’s favor, it could not appeal this issue. See United States v. Am. Ry. Exp.
    Co., 
    265 U.S. 425
    , 435 (1924) (holding a party cannot appeal from a favorable
    judgment). This argument is therefore not forfeited. Further, we may affirm the
    “lower court’s ruling on any grounds adequately supported by the record, even
    grounds not relied upon by the district court.” United States v. Mabry, 
    728 F.3d 1163
    , 1165 n.1 (10th Cir. 2013).
    14
    sufficient regularity that it is ‘occupied’ is a highly contextual and fact-dependent
    inquiry.” 
    Id. at 1164
    .
    We turn to the Service’s factual findings regarding whether jaguars used
    Units 5 and 6 with sufficient regularity for the Units to be considered occupied in
    1972. Because the average jaguar lifespan is ten years, the agency stated that jaguar
    sightings between 1962 and 1982—from ten years before to ten years after the 1972
    listing date—could indicate the presence of jaguars in 1972. Final Critical Habitat
    Designation, 79 Fed. Reg. at 12,581. There were no Class I jaguar sightings in the
    units between 1962 and 1982, however, and no other evidence of jaguar presence
    during that time period. Id.
    The Service also concluded that Class I sightings from 1982 to 2013 are
    relevant evidence of presence in 1972 because it is “likely those areas were occupied
    at the time of the original listing, but jaguars had not been detected because of their
    rarity, the difficulty in detecting them, and a lack of surveys for the species.” Id.
    at 12,581. It lists three jaguar sightings in Units 5 and 6: a jaguar track in Unit 5 in
    1995, a photograph of a jaguar in Unit 5 in 1996, and a photograph of a jaguar in
    Unit 6 in 2006. Id. at 12,579-80. The Service observed that “[j]aguars are difficult
    to detect due to their rarity, cryptic appearance, elusive behavior, and habitat
    complexity.” Id. at 12,581. Further, there were no concerted efforts to detect jaguars
    before 1997, when the Borderlands Jaguar Detection Project set up remote camera
    stations and conducted track and scat surveys. Id. Considering the inadequacy of the
    available data regarding jaguar occupancy, the agency found that these three
    15
    sightings provided sufficient evidence Units 5 and 6 “may have been occupied by
    jaguars” in 1972. Id. at 12,582. It therefore concluded that Units 5 and 6 satisfied
    the requirements for occupied critical habitat under § 1532(5)(A)(i).
    On appeal, the agency argues that we must affirm its finding that Units 5 and 6
    were occupied in 1972 because we must defer to its scientific expertise. Though we
    are mindful that the agency need only base its determinations on the “best scientific
    data available,” § 1533(b)(2), not the best scientific data possible, our review of the
    Final Critical Habitat Designation reveals that the Service did not make a factual
    finding that Units 5 and 6 were occupied by jaguars in 1972. Rather, the agency
    expressed uncertainty about that question and ultimately found only that jaguars may
    have occupied the units at that time.
    Moreover, there is no evidence in the record that any jaguars were present in
    Units 5 and 6 between 1962 and 1982. In fact, there is no evidence that jaguars were
    present in Units 5 and 6 at any time before 1995. The agency’s use of the sightings
    between 1962 and 1982 was based on expert opinion that the average jaguar lifespan
    is ten years; this determination is entitled to our deference. See Colo. Wild, 
    435 F.3d at 1214
     (“[O]ur deference to the agency is greatest when reviewing technical matters
    within its area of expertise, particularly its choice of scientific data and statistical
    methodology.” (quotation omitted)). In contrast, the Service’s reliance on sightings
    in 1995, 1996, and 2006 to support a conclusion of occupation in 1972 is not based
    on expert opinion and is purely speculative.
    16
    Although we acknowledge the difficulty in ascertaining whether jaguars were
    present in Units 5 and 6 in 1972, we conclude that any finding that jaguars occupied
    the Units at that time is speculative and not based on substantial evidence. We
    therefore agree with the district court that the Service’s designation of Units 5 and 6
    as occupied critical habitat was arbitrary and capricious.
    III
    In the alternative, the Service determined that Units 5 and 6 met the
    requirements for unoccupied critical habitat under § 1532(5)(A)(ii) and designated
    them as such. Plaintiffs challenge this designation. Designation of areas as
    unoccupied critical habitat must be based “upon a determination by the Secretary that
    such areas are essential for the conservation of the species.” Id. The statute defines
    “conservation” as “the use of all methods and procedures which are necessary to
    bring any endangered species or threatened species to the point at which the measures
    provided pursuant to this [Act] are no longer necessary.” § 1532(3). “Under this
    definition, conservation encompasses recovery.” Ctr. for Native Ecosystems v.
    Cables, 
    509 F.3d 1310
    , 1322 (10th Cir. 2007).
    A
    The ESA regulations in effect at the time the Service issued the Final Critical
    Habitat Designation provided, “The Secretary [of the Interior] shall designate as
    critical habitat areas outside the geographical area presently occupied by a species
    only when a designation limited to its present range would be inadequate to ensure
    the conservation of the species.” 
    50 C.F.R. § 424.12
    (e) (2013). When it
    17
    promulgated this rule, the agency addressed comments “express[ing] concern over
    the perceived possibility that Critical Habitat could be designated in an unwarranted
    manner for areas outside the geographical area occupied by the species at the time of
    listing.” Rules for Listing Endangered and Threatened Species, Designating Critical
    Habitat, and Maintaining the Lists, 
    45 Fed. Reg. 13,010
    , 13,011 (Feb. 27, 1980). The
    agency expressly rejected the suggestion that it develop “precise criteria . . . to
    [e]nsure that these areas truly constitute Critical Habitat,” finding “further criteria are
    unnecessary.” 
    Id.
     It stated it would “closely scrutinize” any unoccupied areas and
    designate them as critical habitat “only if necessary to ensure the conservation of the
    species.” Id.11
    From the language of the regulatory text and the final rulemaking
    accompanying it, we conclude that under § 424.12(e) (2013),12 before the Service
    11
    In 1984, the agency rejected a suggestion that it designate critical habitat
    outside a species’ known range only when required to prevent the species’ extinction.
    Listing Endangered and Threatened Species and Designating Critical Habitat;
    Amended Procedures for Listing Endangered and Threatened Species and
    Designating Critical Habitat, 
    49 Fed. Reg. 38,900
    , 38,904 (Oct. 1, 1984).
    Concluding that such a limitation would be “inconsistent with the Act’s purpose of
    conserving and recovering species,” the agency reiterated that critical habitat outside
    of the species’ known range would be designated “when essential for the species’
    conservation.” 
    Id.
    12
    The regulation discussed the areas “presently occupied by a species” and the
    species’ “present range.” 
    Id.
     (emphases added). Although this seems to imply that
    the Service should consider the species’ range at the time of designation, such a
    reading would be inconsistent with the statutory requirement that the Service
    consider only the “geographical area occupied by the species at the time it is listed,”
    § 1532(5)(A)(ii). See also Listing Endangered and Threatened Species and
    Designating Critical Habitat; Implementing Changes to the Regulations for
    18
    designates an area as unoccupied critical habitat, it must find designation of occupied
    critical habitat “inadequate to ensure the conservation of the species.” See Markle
    Interests, L.L.C. v. U.S. Fish & Wildlife Serv., 
    827 F.3d 452
    , 470 (5th Cir. 2016)
    (“Under the regulations in effect at the time that Unit 1 was designated, the Service
    had to find that the species’[] occupied habitat was inadequate before it could even
    consider designating unoccupied habitat as critical.”), vacated on other grounds,
    
    139 S. Ct. 590
     (2018). But cf. Bear Valley Mut. Water Co. v. Jewell, 
    790 F.3d 977
    ,
    994 (9th Cir. 2015) (holding requirements that unoccupied areas be “essential [for]
    the conservation of the species” and “that the designated occupied areas are
    inadequate to ensure the conservation of the species” are “identical”). The Final
    Critical Habitat Designation confirmed this understanding of the regulation; it stated
    that unoccupied critical habitat is designated “only when a designation limited to [the
    species’] range would be inadequate to ensure the conservation of the species.” 79
    Fed. Reg. at 12,578.
    Subsequent rulemakings further reflect that under the version of § 424.12(e) in
    effect at the time the Service issued the Final Critical Habitat Designation, the
    Service must find designation of occupied areas inadequate before designating
    unoccupied critical habitat. In 2016, the agency amended the regulation and
    Designating Critical Habitat, 
    81 Fed. Reg. 7414
    , 7434 (Feb. 11, 2016)
    (acknowledging this “confusion”). We read § 424.12(e) (2013) to require the Service
    to consider a species’ range at the time of listing, as provided in § 1532(5)(A)(ii).
    19
    recodified it at 
    50 C.F.R. § 424.12
    (b)(2).13 The final rulemaking accompanying the
    amendment explained:
    [W]e have learned from years of implementing the critical habitat
    provisions of the Act that often a rigid step-wise approach, i.e., first
    designating all occupied areas that meet the definition of “critical
    habitat” (assuming that no unoccupied habitat is designated) and then,
    only if that is not enough, designating essential unoccupied habitat, does
    not necessarily serve the best conservation strategy for the species and
    in some circumstances may result in a designation that is geographically
    larger, but less effective as a conservation tool. Our proposed change
    will allow us to consider the inclusion of occupied and unoccupied areas
    in a critical habitat designation following at minimum a general
    conservation strategy for the species.
    Implementing Changes to the Regulations for Designating Critical Habitat, 81 Fed.
    Reg. at 7427. The Service thus explicitly acknowledged that the prior version of the
    regulation—the one at issue in this case—required a “rigid step-wise approach”
    under which it must first designate occupied areas, then designate unoccupied areas
    only if designation of the occupied areas is insufficient.
    The Service amended the provision yet again in 2019.14 The final rulemaking
    13
    The amended version provided, “The Secretary will identify, at a scale
    determined by the Secretary to be appropriate, specific areas outside the geographical
    area occupied by the species that are essential for its conservation, considering the
    life history, status, and conservation needs of the species based on the best available
    scientific data.” § 424.12(b)(2) (2016).
    14
    The amended regulation now provides:
    The Secretary will designate as critical habitat, at a scale determined by
    the Secretary to be appropriate, specific areas outside the geographical
    area occupied by the species only upon a determination that such areas
    are essential for the conservation of the species. When designating
    critical habitat, the Secretary will first evaluate areas occupied by the
    20
    accompanying that amendment characterized the 2016 amendment as “chang[ing] the
    step-wise approach we had been using since 1984” and “eliminating the sequenced
    approach to considering occupied habitat before unoccupied habitat.” Endangered
    and Threatened Wildlife and Plants; Regulations for Listing Species and Designating
    Critical Habitat, 
    84 Fed. Reg. 45,020
    , 45,043 (Aug. 19, 2019). Both the 2016 and
    2019 rulemakings therefore support our conclusion that § 424.12(e) (2013) required a
    sequential, “step-wise” approach, under which the Service must find designation of
    occupied areas inadequate as a prerequisite to designating unoccupied areas.15
    B
    Before considering whether the Service complied with § 424.12(e) (2013), we
    note that on appeal, plaintiffs cite the regulation but do not argue that the Service
    failed to comply with it. As an initial matter, we conclude that the issue is
    administratively exhausted. “Parties must exhaust available administrative remedies
    before the [agency] prior to bringing their grievances to federal court.” Ark Initiative
    species. The Secretary will only consider unoccupied areas to be
    essential where a critical habitat designation limited to geographical
    areas occupied would be inadequate to ensure the conservation of the
    species. In addition, for an unoccupied area to be considered essential,
    the Secretary must determine that there is a reasonable certainty both
    that the area will contribute to the conservation of the species and that
    the area contains one or more of those physical or biological features
    essential to the conservation of the species.
    § 424.12(b)(2) (2019).
    15
    We emphasize that our resolution of this case requires only an interpretation
    of § 424.12(e) (2013). The 2016 and 2019 amendments to the regulation do not
    affect the outcome of this case.
    21
    v. U.S. Forest Serv., 
    660 F.3d 1256
    , 1261 (10th Cir. 2011) (quotation omitted). In
    promulgating the Final Critical Habitat Designation, the Service considered the
    following comment:
    The Service states in the proposed rule that [it] designate[s] critical
    habitat in areas outside the geographical area occupied by a species only
    when a designation limited to its range would be inadequate to ensure
    the conservation of the species. The area currently occupied by the
    jaguar outside the United States is adequate for the conservation of the
    jaguar.
    79 Fed. Reg. at 12,615. Although the comment did not cite § 424.12(e) (2013), it
    questioned the agency’s failure to find designation of occupied areas inadequate
    before designating unoccupied areas as critical habitat. Because the issue was raised
    “in sufficient detail to allow the agency to rectify the alleged violation,” it is
    administratively exhausted. Ark Initiative, 
    660 F.3d at 1261
    .
    We turn to whether we may address the Service’s compliance with the
    regulation, given that plaintiffs did not specifically brief the issue. Plaintiffs argue
    that the Service’s designation of unoccupied jaguar habitat was arbitrary and
    capricious because it did not comport with the statutory requirement that such areas
    be “essential for the conservation of the species.” § 1532(5)(A)(ii). The Service
    promulgated § 424.12(e) (2013) to interpret this statutory provision. See Rules for
    Listing Endangered and Threatened Species, Designating Critical Habitat, and
    Maintaining the Lists, 45 Fed. Reg. at 13,011. At the district court, plaintiffs and the
    Service quoted the regulation in their briefs. Further, plaintiffs requested
    “declaratory judgment and injunctive relief against the Defendants for violating . . .
    22
    
    50 C.F.R. § 424.12
    (e).” On appeal, plaintiffs and the Service quote the regulation in
    their briefs. Plaintiffs do not challenge the validity of the regulation, thereby
    acknowledging that it defines the agency’s obligations when designating unoccupied
    critical habitat. But they do not request that we overturn the Final Critical Habitat
    Designation because it did not comply with § 424.12(e) (2013). Rather, plaintiffs
    challenge the agency action only on statutory grounds. They ask us to define the
    word “essential” restrictively, not raising the narrower, related issue of whether the
    Service complied with the regulation.
    In the context of arguments raised before us but not before the district court,
    we have held that the “general waiver rule is not absolute, . . . and we may depart
    from it in our discretion, particularly when we are presented with a strictly legal
    question, the proper resolution of which is beyond doubt or when manifest injustice
    would otherwise result.” Sussman v. Patterson, 
    108 F.3d 1206
    , 1210 (10th Cir. 1997)
    (alteration and quotation omitted); see also Greene v. Safeway Stores, Inc., 
    210 F.3d 1237
    , 1243 (10th Cir. 2000) (exercising discretion to consider waived argument
    because “the issue presented is one of law”). In such cases, we may exercise
    discretion when “the record is sufficient to resolve the issue on its merits.” Hooker
    v. Mullin, 
    293 F.3d 1232
    , 1241 n.7 (10th Cir. 2002). Similarly, in cases in which
    appellate briefs are deficient because they do not comply with the Federal Rules of
    Appellate Procedure, we have held that “the court in its discretion may scrutinize the
    merits of the case insofar as the record permits.” MacArthur v. San Juan Cty., 
    495 F.3d 1157
    , 1161 (10th Cir. 2007); see also Burke v. Regalado, 
    935 F.3d 960
    , 1031
    23
    (10th Cir. 2019) (relying on a “detailed motion . . . filed in the district court” because
    the appellate briefing was inadequate).
    Plaintiffs do not challenge the validity of § 424.12(e) (2013), which interprets
    § 1532(5)(A)(ii); they only contest the Service’s compliance with the statute. But
    when we consider an agency action made pursuant to a statute and an implementing
    regulation, we cannot ignore the regulatory context when determining whether that
    action was arbitrary and capricious. In this case, whether the Service complied with
    the regulation is a strictly legal question that we are fully capable of resolving on the
    administrative record alone. As set forth below, that record leads us to conclude the
    agency did not comply with the regulation, and our resolution of this issue is beyond
    doubt. Further, the agency had a chance to rectify this error, but failed to do so.
    Thus, instead of addressing plaintiffs’ statutory argument—that the Service’s
    designation of Units 5 and 6 as unoccupied critical habitat is arbitrary and capricious
    because the areas were not “essential for the conservation of the species” under
    § 1532(5)(A)(ii)—we exercise our discretion to consider whether the Service
    complied with the requirements of § 424.12(e) (2013).
    C
    Turning to the merits of the issue, we have held that “[a]gencies are under an
    obligation to follow their own regulations, procedures, and precedents, or provide a
    rational explanation for their departure.” Utahns for Better Transp. v. U.S. Dep’t of
    Transp., 
    305 F.3d 1152
    , 1165 (10th Cir. 2002). When an agency does not comply
    with its own regulations, it acts arbitrarily and capriciously. 
    Id. at 1178
    ; see also
    24
    Cherokee Nation of Okla. v. Norton, 
    389 F.3d 1074
    , 1078 (10th Cir. 2004) (“[The
    APA] require[s] agencies, on pain of being found to have acted arbitrarily and
    capriciously, to comply with their own regulations.”).16
    In the Final Critical Habitat Designation, the Service “acknowledge[d] that the
    lack of jaguar sightings at the time the species was listed as endangered in 1972 . . .
    suggest[ed] that jaguars in the United States had declined to such an extent by that
    point as to be effectively eliminated.” 79 Fed. Reg. at 12,588 (citation omitted). It
    continued:
    To the extent that areas described above may not have been occupied at
    the time of listing, we determine that they are essential to the
    conservation of the species for the following reasons: (1) They have
    demonstrated recent (since 1996) occupancy by jaguars; (2) they contain
    features that comprise suitable jaguar habitat; and (3) they contribute to
    the species’ persistence in the United States by allowing the normal
    demographic function and possible range expansion of the proposed
    Northwestern Recovery Unit, which is essential to the conservation of
    the species.
    Id.
    To the extent that any Units were occupied in 1972, the Service was required
    to find that their designation as critical habitat was inadequate to ensure jaguar
    conservation before it designated Units 5 and 6, which were unoccupied, as critical
    habitat. It did not so do. The Service did not find that the designation of areas
    occupied by jaguars in 1972 would be inadequate to ensure the conservation of the
    16
    An agency’s interpretation of its own regulations may be entitled to
    deference if the regulation is “genuinely ambiguous.” Kisor v. Wilkie, 
    139 S. Ct. 2400
    , 2414 (2019). But § 424.12(e) (2013) is not ambiguous.
    25
    species. Nor did it make findings about whether any individual unit designated as
    unoccupied was essential for the conservation of the species.17 Rather, it addressed
    all the units together, finding that to the extent they were not occupied, they were
    essential for the conservation of the species.
    We conclude the agency did not comply with its obligation to designate
    unoccupied critical habitat “only when a designation limited to its present range
    would be inadequate to ensure the conservation of the species.” § 424.12(e) (2013).
    Because it did not follow its own regulations or provide a rational explanation for
    failing to do so, its designation of Units 5 and 6 as critical habitat was arbitrary and
    capricious.
    IV
    Plaintiffs also argue that because Units 5 and 6 are “secondary,” “marginal”
    habitat and constitute only a small portion of the jaguar’s range, they cannot be
    essential for the conservation of the species. We disagree. The Service convened a
    Jaguar Recovery Team, which prepared a Recovery Outline for the jaguar. See Final
    Critical Habitat Designation, 79 Fed. Reg. at 12,573-74. The Recovery Outline maps
    the “Northwestern Recovery Unit,” including jaguar habitat in the United States and
    17
    The Final Critical Habitat Designation did include specific findings
    pertaining to Units 1b, 4b, and 4c, for which there was no evidence of jaguar
    occupation at any time. Id. at 12,591-92. The Service found that “maintaining travel
    corridors to Mexico is essential for the conservation of jaguars in the Northwestern
    Recovery Unit, and, therefore, for the species as a whole.” Id. at 12,589. Because
    Units 1a and 4a do not border Mexico, the Service specifically found Units 1b, 4b,
    and 4c were essential for the conservation of the species because they connected
    Units 1a and 4a to Mexico. Id. at 12,593-94.
    26
    northwestern Mexico. See id. at 12,574. The Northwestern Recovery Unit comprises
    only a small portion of the jaguar’s range and is divided into so-called “core” and
    “secondary” areas. See id. Core areas exhibit evidence of consistent jaguar presence
    and recent reproduction, whereas secondary areas are characterized by recent records
    of jaguar presence but little evidence of reproduction. The portion of the
    Northwestern Recovery Unit in the United States, which encompasses all of Units 1
    to 6, is part of the Borderlands Secondary Area; the nearest core area—the Sonora
    Core Area—is about 130 miles south of the U.S.-Mexico border. Id. “The more
    open, dry habitat of the southwestern United States has been characterized as
    marginal habitat for jaguars in terms of water, cover, and prey densities.” Id.
    at 12,573-74.
    In the Final Critical Habitat Designation, the Service stated that the areas
    designated as critical habitat contribute to jaguar conservation because they “support
    some individuals during dispersal movements, provide small patches of habitat
    (perhaps in some cases with a few resident jaguars), and provide areas for cyclic
    expansion and contraction of the nearest core area.” Id. at 12,574. Jaguars
    “dispersing into the United States are important,” the Service explained, “because
    they occupy habitat that serves as a buffer to zones of regular reproduction and are
    potential colonizers of vacant range.” Id. “[A]s such, areas supporting them are
    important to maintaining normal demographics, as well as allowing for possible
    range expansion.” Id. The agency also found that “the Northwestern Recovery Unit
    is essential for the conservation of the species,” and that “[c]ritical habitat in the
    27
    United States contributes to recovery across the species’ entire range.” Id. at 12,574,
    12,605. In our view, it is not inconsistent for the Service to find both that Units 5
    and 6 are “secondary” or “marginal” habitat and that they are essential for the
    conservation of the jaguar.
    V
    Finally, plaintiffs contend that because the ESA limits “conservation” to those
    methods and procedures necessary to bring a species “to the point at which the
    measures provided pursuant to this chapter are no longer necessary,” § 1532(3), the
    Service was required to identify this “point” when it designated the jaguar’s critical
    habitat. But the ESA’s detailed provisions regarding designation of critical habitat
    include no such requirement. See Markle Interests, 827 F.3d at 469 (“The ESA’s
    critical-habitat provisions do not require the Service to know when a protected
    species will be conserved as a result of the designation.”), vacated on other grounds,
    
    139 S. Ct. at 590
    ; Home Builders Ass’n of N. Cal. v. U.S. Fish & Wildlife Serv., 
    616 F.3d 983
    , 989 (9th Cir. 2010) (“[T]here is no reason why [the Service] cannot
    determine what elements are necessary for conservation without determining exactly
    when conservation will be complete. . . . [T]he statute actually runs contrary to [this]
    argument.”). Moreover, in a different provision governing recovery plans, the ESA
    requires the Service to identify “objective, measurable criteria which, when met,
    would result in a determination, in accordance with the provisions of this section, that
    the species be removed from the list.” § 1533(f)(1)(B)(ii). This requirement is
    entirely separate from the requirements for the designation of critical habitat. See
    28
    Hamdan v. Rumsfeld, 
    548 U.S. 557
    , 578 (2006) (“Where Congress includes
    particular language in one section of a statute but omits it in another section of the
    same Act, it is generally presumed that Congress acts intentionally and purposely in
    the disparate inclusion or exclusion” (alteration and quotation omitted)).
    Accordingly, we hold the ESA does not require the Service to identify the point at
    which a species will be considered to have recovered when it designates critical
    habitat for that species.18
    VI
    For the foregoing reasons, we REVERSE the decision of the district court and
    REMAND for proceedings consistent with this decision.
    18
    Plaintiffs also argue that the Service’s designation of Unit 6 as critical
    habitat was arbitrary and capricious because the unit does not contain the “physical
    and biological features essential to the conservation of the species” under
    § 1532(5)(A)(i). They misread the statute, which unambiguously imposes this
    requirement only on occupied areas designated as critical habitat, not on unoccupied
    areas. Further, this argument was forfeited because it was not raised during the
    notice-and-comment period. See Dep’t of Transp. v. Pub. Citizen, 
    541 U.S. 752
    ,
    764-65 (2004).
    29
    17-2211, NM Farm & Livestock Bureau v. U.S. Department of Interior
    HARTZ, J., Circuit Judge, concurring
    I join in full Judge Lucero’s opinion. I add only one observation. The
    administrative record raises concerns about whether the Service defined essential to mean
    merely convenient or helpful. But I am confident that it will be more careful after
    remand.