Endangered Species Law & Policy

On March 5, 2024, the Center for Biological Diversity and several other groups submitted a petition to the California Fish and Game Commission (the Commission) to list the western burrowing owl (Athene cunicularia hypugaea) as endangered or threatened pursuant to the California Endangered Species Act. The petition identifies five separate populations (or evolutionarily significant units (ESUs)) of burrowing owls and petitions to list three as endangered and two as threatened. Alternatively, the petition requests that the Commission consider either (i) listing a greater ...

On March 9, the U.S. Fish and Wildlife Service (Service) issued its 12-month finding that listing Joshua trees (Yucca brevifolia and Y. jaegeriana) as endangered or threatened species under the Endangered Species Act (ESA) is not warranted. The 12-month finding was made to comply with a September 20, 2021 court-ordered remand of the Service’s previous “not warranted” finding in August 2019.

In September 2015, WildEarth Guardians submitted a petition to list the Joshua trees as threatened and, if applicable, designate critical habitat for the species. The Service issued ...

On August 25, 2022, the U.S. Fish and Wildlife Service (Service) filed a stipulated settlement agreement (Agreement) in a case challenging the agency’s failure to timely make a 12-month finding on a petition to list the dunes sagebrush lizard (Scleroperus arenicolus) (Petition). Under the Agreement, the Service will submit a 12-month finding on the Petition to the Federal Register no later than June 29, 2023. The 12-month finding will determine whether listing the species is warranted (and will simultaneously issue a proposed rule to list the species), whether listing the ...

On August 23, 2022, the U.S. Fish and Wildlife Service (Service) issued a notice in response to petitions seeking to list, delist, or revise the critical habitat of four species under the Endangered Species Act (ESA). The Service found the petitions to list the Fish Lake Valley tui chub (Siphateles bicolor ssp. 4) and to delist the southern sea otter (Enhydra lutris nereis) “present substantial scientific or commercial information indicating that the petitioned actions may be warranted,” and are therefore initiating status reviews to determine whether to list and delist the species, respectively. …

On May 19, 2022, the Center for Biological Diversity (CBD) filed a lawsuit in the U.S. District Court for the District of New Mexico, challenging the U.S. Fish and Wildlife Service’s (Service) failure to make a timely 12-month finding on the group’s petition to list the dunes sagebrush lizard (Sceloporus arenicolus) (DSL), which was submitted to the agency in 2018.

The DSL is no stranger to controversy. In 2002, CBD and others petitioned the Service to list the DSL due to alleged threats to the species’ habitat caused by oil and gas production. In 2004, the Service determined that ...

On February 8, 2022, the U.S. Fish and Wildlife Service (Service) published findings on several petitions to list species under the Endangered Species Act (ESA), some of which have been highly anticipated.

Pursuant to an August 2020 settlement agreement between the Service, WildEarth Guardians, and Western Watersheds Project, the Service published a 12-month finding on a petition to list the Sonoran desert tortoise (Gopherus morafkai). The tortoise is patchily distributed across 68,600 square miles in the Sonoran Desert ecoregion of Arizona and Sonora, Mexico. In its 12-month ...

On January 12, 2022, the General Land Office of Texas (GLO) filed a lawsuit in the U.S. District Court for the Western District of Texas, challenging the U.S. Fish and Wildlife Service’s (Service) July 27, 2021 negative 90-day finding on a petition to delist the endangered golden-cheeked warbler (Setophaga chrysoparia) (Negative 90-day Finding). The Negative 90-day Finding is the second 90-day finding issued by the Service on the same petition to delist the golden-cheeked warbler.

GLO challenged the first 90-day finding, published on June 3, 2016, as arbitrary and capricious on ...

Last week, the Center for Biological Diversity (CBD) filed suit against the U.S. Fish and Wildlife Service in the U.S. District Court for the Central District of California, alleging that the agency violated the Endangered Species Act (ESA) when it failed to timely determine whether the Santa Ana speckled dace (hinichthys osculus ssp.) and the Long Valley speckled dace (Rhinichthys osculus ssp.) warrant listing as endangered or threatened species. … 

Earlier this week, the U.S. Fish and Wildlife Service (Service) published a Federal Register notice addressing 90-day findings for three separate species.  With the notice, two species moved one step closer to being listed under the federal Endangered Species Act (ESA).

In July of 2020, the Service received a petition to list the Alexander Archipelago wolf (Canis lupus ligoni) as an endangered or threatened species.  The wolf’s current range includes Alaska and Canada.  The Service concluded in the 90-day finding that listing may be warranted due to potential threats associated ...

On May 17, 2021, the United States Court of Appeals for the Ninth Circuit held that a U.S. Fish and Wildlife Service (Service) rule requiring that affected states receive a 30-day notice of an intent to file a petition to list a species as endangered or threatened is inconsistent with the Endangered Species Act (ESA). See Friends of Animals v. Haaland, Case No. 20-35318 (9th Cir. May 17, 2021); 50 C.F.R. § 424.14(b).

In reaching its decision, the Ninth Circuit reviewed the Service’s rulemaking under a two-step framework established by the Supreme Court in the landmark case Chevron U. S ...

According to a handful of environmental groups, the answer is a definitive yes. And after the U.S. Fish & Wildlife Service (“FWS”) issued a 90-day finding concluding in the alternative, earlier this week three environmental groups decided to take FWS to court. The lawsuit was filed by the Buffalo Field Campaign, Friends of Animals, and Western Watersheds Project. According to the press release issued by one of the environmental groups, FWS “applied the wrong evidentiary standard, and disregarded evidence of factors that imperil the unique and distinct subpopulations of ...

On January 15, 2020, the United States Court of Appeals for the Fifth Circuit reversed a lower court decision that upheld the determination of the U.S. Fish and Wildlife Service (Service) denying a petition to delist the Golden-Cheeked Warbler (Setophaga chrysoparia) (Warbler). The Service listed the Warbler as an endangered species under the Endangered Species Act (ESA) in 1990, initially on an emergency basis.

The petition to delist the Warbler was submitted to the Service in 2015 by a group of petitioners that included the General Land Office of the State of Texas. The petition ...

On August 6, 2019, the U.S. Fish and Wildlife Service (FWS) published a 90-day finding that listing the Yellowstone Park bison (Bison bison bison) under the Endangered Species Act is not warranted. FWS also found that listing the Mojave poppy bee (Perdita meconis) and revising the critical habitat designation for the endangered Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) may be warranted ...

On August 15, 2019, the U.S. Fish and Wildlife Service (FWS) published a series of notices in the Federal Register announcing the agency’s 12-month and 90-day findings on petitions to list a number of species under the Endangered Species Act (ESA).  Most prominently, the FWS declined to list two species commonly known as the Joshua tree (Yucca brevifolia and Yucca jaegeriana) ...

On February 27, 2018, the National Marine Fisheries Service (Service) published a 90-day finding on the Karuk Tribe and Salmon River Restoration Council’s (Petitioners) petition to list the Upper Klamath-Trinity Rivers Basin (UKTR) Chinook salmon (Oncorhynchus tshawtscha) evolutionarily significant unit (ESU) as endangered or threatened.  Based on the information included in Petitioners’ filing, the Service found that listing the UKTR ESU as endangered or threatened under the Endangered Species Act (ESA) may be warranted.

The Service’s determination follows a ...

As 2018 approaches, the U.S. Fish and Wildlife Service (Service) made a few announcements that will likely impact the list of threatened and endangered species.  In these last 11 days of 2017, the Service announced 90-day findings on petitions to list or reclassify five species, and 12-month findings on petitions to list or de-list two species under the ESA.

• On December 20, 2017, the Service announced 90-day findings on petitions for five separate species. The Service found that the petitioned actions for each of the five species may be warranted, based on the information presented in ...

On June 2, 2016, the U.S. Fish and Wildlife Service (Service) issued a 90-day finding that listing populations of the Northwestern moose (Alces alces andersoni) under the Endangered Species Act (ESA) may be warranted.  The Service’s 90-day finding is in response to a petition filed in July 2015 by the Center for Biological Diversity and Honor the Earth, which asked that the moose be listed as a threatened or endangered distinct population segment (DPS).

The U.S. population of Northwestern moose inhabits the upper peninsula of Michigan, Minnesota, North Dakota and Wisconsin.  In ...

After a relatively quiet start to the year, the National Marine Fisheries Service (NMFS) and U.S. Fish & Wildlife Service (FWS)  have issued findings and rules regarding the proposed listings of four separate species under the Endangered Species Act (ESA) over the last two days.  NMFS issued a 90-day finding on a petition to list the Gulf of Mexico population of Bryde's whale (Balaenoptera edeni) on April 6, 2015.  FWS issued a 12-month finding on a petition to list the Humboldt marten (Martes caurina humboldtensis) and proposed to list two species of crayfish - the Big Sandy crayfish ...

On March 27, 2015, the National Marine Fisheries Service (NMFS) accepted two petitions asking NMFS to list the Porbeagle shark (Lamna nasus) as threatened or endangered under the Endangered Species Act either throughout the entirety of its global range, or as distinct population segments (DPS) occurring in the Northwest Atlantic, the Northeast Atlantic, and the Mediterranean.  (80 Fed. Reg. 16,356 [pdf].)  The petitions, filed separately by Wild Earth Guardians and the Humane Society of the United States, were originally rejected as not warranted by NMFS in July 2010.  Both ...