Center for Biological Diversity, et al. v. United States Bureau of Land Management, et al.

District Court, D. Arizona·Decided March 31, 2026·No. 4:24-cv-00141·Unknown

Opinion

WO

Center for Biological Diversity, et al., No. CV-24-00141-TUC-RM

Plaintiffs, ORDER

v.

United States Bureau of Land Management, et al., Defendants. Pending before the Court is Plaintiffs’ Motion for Summary Judgment on Claim 1 and Claim 2 of the Second Amended Complaint (Doc. 28), and Defendants’ Cross-Motion for Summary Judgment on Claim 1 and Claim 2 of the Second Amended Complaint (Doc. 31). The Motions are fully briefed. (Docs. 32, 36, 43.) For the following reasons, the Court will grant Plaintiffs’ Motion, and deny Defendants’ Motion. In Claim 1, Plaintiffs challenge a 2018 Letter of Concurrence issued by the Fish and Wildlife Service (“FWS”) finding that reauthorization of livestock grazing on the Horseshoe Allotment of the Agua Fria National Monument was not likely to adversely affect any threatened or endangered species, or adversely modify their critical habitat. (Doc. 47 at 43.)1 In Claim 2, Plaintiffs challenge a 2024 Letter of Concurrence by the FWS making the same finding. (Id. at 44.) Plaintiffs assert in both Claim 1 and Claim 2 that the Bureau of Land Management independently violated the law by relying upon each deficient Letter of Concurrence. (Doc. 47 at 43-44.)

1 All citations to the record herein refer to the page numbers generated by the Court’s electronic case management system. I. Statutory Framework The Endangered Species Act (“ESA”) “was enacted, in relevant part, to provide for the conservation of endangered and threatened species, as well as the ecosystems upon which such species depend.” Ctr. for Biological Diversity v. Jewell, 248 F. Supp. 3d 946, 950 (D. Ariz. 2017), amended in part, No. CV-14-02506-TUC-RM, 2017 WL 8788052 (D. Ariz. Oct. 25, 2017) (citing 16 U.S.C. § 1531(b)). The Secretary must designate “critical habitat” for species designated as endangered or threatened (“listed species”), consisting of the areas containing natural features that are “essential to the conservation of the species” and which “may require special management considerations or protection.” 16 U.S.C. § 1532(5)(A). The ESA requires “federal agencies authorizing, funding, or carrying out actions that may affect listed species or their critical habitat—so-called ‘action agencies’—to engage in consultation” with either the FWS, for terrestrial species, or the National Marine Fisheries Service, for marine species. Pacificans for a Scenic Coast v. California Dep’t of Transportation, 204 F. Supp. 3d 1075, 1083 (N.D. Cal. 2016) (citing 16 U.S.C. § 1536(a)(2)). Federal agencies must ensure that their action “is not likely to jeopardize the continued existence” of any listed species “or result in the destruction or adverse modification” of the critical habitat of any listed species. 16 U.S.C. § 1536(a)(2). If critical habitat or listed species are present in an area of agency action, the agency undertaking the action generally prepares a Biological Assessment to determine whether the listed species or critical habitat is “likely to be affected” by the proposed action. Nat. Res. Def. Council v. Haaland, 102 F.4th 1045, 1055 (9th Cir. 2024). If the action agency determines—and the applicable wildlife management agency concurs—that the proposed action is “not likely to adversely affect listed species or critical habitat, the consultation process is terminated, and no further action is necessary.” Id. (citing 50 C.F.R. § 402.13(c)). If the action agency determines that the proposed action is “likely to adversely affect listed species or a critical habitat,” however, formal consultation is required. Id. (citing 50 C.F.R. § 402.14(a)-(b)). Formal consultation requires the preparation of a Biological Opinion, which determines whether the proposed action would likely jeopardize a listed species or critical habitat. Id. (citing 16 U.S.C. § 1536(b)(3)(A)). If there is a finding that the proposed action would jeopardize a listed species or critical habitat, the applicable wildlife management agency must suggest “reasonable and prudent alternatives” that can be used to avoid such jeopardization. Id. (citing 15 U.S.C. § 1536(b)(3)(A)). After consultation has been completed, the action agency remains subject to an obligation to reinitiate consultation with the applicable wildlife management agency “where discretionary Federal involvement or control over the action has been retained or is authorized by law and . . . new information reveals effects of the action that may affect listed species or critical habitat in a manner or to an extent not previously considered.” Id. (citing 50 C.F.R. § 402.16(a)). Therefore, even if the underlying agency action is complete, an agency must still satisfy its obligations . . . including reinitiation of consultation, to the extent it retains regulatory authority over the action.” Id. at 1055-56. II. Factual Background Claims 1 and 2 in this action arise from livestock grazing in the Horseshoe Allotment of the Agua Fria National Monument in central Arizona undertaken by private parties pursuant to permits issued by the Bureau of Land Management (“BLM”). (Doc. 47 at 43-44.) Plaintiffs are two organizations that focus on species conservation, and each have members that regularly visit the Agua Fria National Monument to recreate, and to photograph and study wildlife. (Docs. 28-6, 28-7, 28-8.) Plaintiffs argue that the livestock grazing permitted by Defendants has caused serious damage to the critical habitat of two species protected by the ESA—the Gila Chub, a native fish, and the western-yellow-billed Cuckoo, a migratory bird that winters in South America. (Doc. 28 at 5, 9.) Pursuant to Section 4 of the ESA,2 the Chub has been designated an endangered species, and the Cuckoo has been designated a threatened species. (FWS03047, FWS04130.) As a result of these designations, riparian areas along the Agua Fria River have been given the status of critical habitat for the Cuckoo, and riparian areas along a tributary of the Agua Fria River,

Free access — add to your briefcase to read the full text and ask questions with AI

Center for Biological Diversity, et al. v. United States Bureau of Land Management, et al., (D. Ariz. 2026).

Center for Biological Diversity, et al. v. United States Bureau of Land Management, et al. (Center for Biological Diversity, et al. v. United States Bureau of Land Management, et al.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Bennett v. Spear
520 U.S. 154 (Supreme Court, 1997)
Department of Transportation v. Public Citizen
541 U.S. 752 (Supreme Court, 2004)
United States v. Delgado-Hernandez
420 F.3d 16 (First Circuit, 2005)
Karuk Tribe v. United States Forest Service
681 F.3d 1006 (Ninth Circuit, 2012)
Center for Biological Diversity v. Rumsfeld
198 F. Supp. 2d 1139 (D. Arizona, 2002)
Alaska Oil and Gas Ass'n v. Penny Pritzker
840 F.3d 671 (Ninth Circuit, 2016)
Ctr. for Biological Diversity v. David Bernhardt
982 F.3d 723 (Ninth Circuit, 2020)
Center for Biological Diversity v. Jewell
248 F. Supp. 3d 946 (D. Arizona, 2017)
Walker v. Gibbs
2 U.S. 211 (Supreme Court of Pennsylvania, 1793)
Love v. Thomas
858 F.2d 1347 (Ninth Circuit, 1988)
Nrdc v. Debra Haaland
102 F.4th 1045 (Ninth Circuit, 2024)