Endangered Species Law & Policy

On December 10, 2024, the U.S. Fish and Wildlife Service (Service) released its long-anticipated listing proposal for the monarch butterfly (Danaus plexippus), along with a proposed critical habitat designation and species-specific 4(d) rule (Proposed Rule). The Proposed Rule indicates the public comment period closes on March 12, 2025.

The Service has proposed listing the monarch as threatened primarily as a result of threats from past and ongoing loss and degradation of breeding, migratory, and overwintering habitat, exposure to insecticides, and the effects of climate ...

On September 5, 2024, the U.S. District Court for the Western District of Texas held in General Land Office v. U.S. Department of the Interior, that the U.S. Fish and Wildlife Service (Service) improperly denied a petition to delist the federally-endangered golden-cheeked warbler (Setophaga chrysoparia) (GCWA) by holding the petition to an unlawfully heightened standard at the initial, 90-day finding stage. As a result of the court’s ruling, the Service is required to undertake a review of the GCWA delisting petition and make a 90-day finding as to whether the petition presents ...

On July 25, 2023, the U.S. Fish and Wildlife Service (Service) published a proposed rule to list two mussel species, the Salina mucket (Potamilus metnecktayi) and Mexican fawnsfoot (Truncilla cognata), as endangered under the Endangered Species Act (ESA). The Service also proposed to designate critical habitat for these species under the ESA. The proposed critical habitat for the Salina mucket would amount to approximately 200 river miles in the Texan counties of Brewester, Terrell, and Val Verde, and the proposed critical habitat for the Mexican fawnsfoot would amount to ...

On July 20, 2023, the U.S. Fish and Wildlife Service (Service) issued a final rule listing the cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum) (“Owl”) as a threatened subspecies with a 4(d) rule under the Endangered Species Act (ESA). The 4(d) rule prohibits the same activities prohibited for endangered species, but allows exemptions for certain education and outreach activities permitted under a Migratory Bird Treaty Act permit, surveying and monitoring in Arizona under a state scientific activity permit, and habitat restoration and enhancement ...

This month, the United States Fish and Wildlife Service (Service) published the latest update to its National Listing Workplan (Workplan). This update to the Workplan is the Service’s latest since March 2022 and projects the anticipated timeline for the agency’s listing-related decisions over the next five years (2023-2027). In general, the Workplan estimates the Service’s publication dates for various findings and publications, including but not limited to 12-month findings, species status reviews, proposed listing determinations and critical habitat ...

Last week, the U.S. District Court for the District of Columbia issued a ruling allowing the Center for Biological Diversity (CBD) to continue pursuing its large Endangered Species Act (ESA) lawsuit against the U.S. Fish and Wildlife Service (Service) and the Department of the Interior.

The underlying lawsuit, filed in 2019, alleges that the Service violated the ESA by failing to timely publish 12-month findings on nearly 200 listing petitions, final listing determinations for six species, and designations of critical habitat for four species.  In response, the Service filed a ...

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 February 23, the U.S. Fish and Wildlife Service (Service) issued a proposed rule to list two distinct population segments (DPSs) of the California spotted owl (Strix occidentalis) as endangered and threatened species under the Endangered Species Act (ESA). The two DPSs are the Coastal-Southern California DPS, which the Service proposes to list as endangered, and the Sierra Nevada DPS, which the Service proposes to list as threatened with a rule issued under section 4(d) of the ESA (4(d) rule). The proposed rule also serves as the Service’s 12-month finding on a petition to list ...

On October 18, 2022, the U.S. Fish and Wildlife Service (Service) announced 12-month findings on a petition to list three California-based salamander species under the Endangered Species Act (ESA): the Kern Plateau salamander (Batrachoseps robustus), the Kern Canyon slender salamander (Batrachoseps simatus), and the relictual slender salamander (Batrachoseps relictus). All three salamander species occur in the southern Sierra Nevada Mountains in California. The Service determined that listing the Kern Canyon slender salamander and the relictual slender salamander is ...

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 ...

Last week, a decision out of the U.S. District Court for the Northern District of California restored Endangered Species Act (ESA) protections for the gray wolf (Canis lupus) across most of the contiguous United States.

In 2020, the U.S. Fish and Wildlife Service (Service) issued a final rule removing federal protections for the last two remaining gray wolf entities listed as threatened or endangered under the ESA.  The final rule asserted delisting was warranted because neither the Minnesota entity nor the 44-state entity qualified as a species, subspecies, or distinct population ...

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 December 22, 2021, the U.S. Fish and Wildlife Service (Service) proposed to list the cactus ferruginous pygmy owl (Glaucidium brasilianum cactorum) (Owl) as threatened under the Endangered Species Act (ESA) primarily due to threats from climate change and habitat loss and fragmentation. The Service has also proposed to issue an ESA section 4(d) rule which would prohibit “take” of the Owl in most cases, while exempting from the prohibition certain land management activities compatible with restoration and improvement of Owl habitat where such activities have been ...

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. … 

This week, the U.S. Fish and Wildlife Service (USFWS) issued three separate notices in the Federal Register concerning the agency’s 12-month findings on a number of petitions to list various wildlife and plants under the Endangered Species Act (ESA).

First, the USFWS announced a positive 12-month finding on a petition to list the Peñasco least chipmunk (Neotamias minimus atristriatus), a small mammal from New Mexico.  The USFWS proposes to list the Peñasco least chipmunk as an endangered species under the ESA and to designate approximately 6,574 acres of land as critical ...

On September 20, 2021, the U.S. District Court for the Central District of California set aside the U.S. Fish and Wildlife Service’s (Service) negative 12-month finding (Finding) on a petition by WildEarth Guardians (Guardians) to list the Joshua tree (Yucca brevifolia) as threatened under the Endangered Species Act (ESA).

The petition had alleged that the Joshua tree is threatened by the effects of climate change and its associated effects, including drought and increasing wildfires. On September 14, 2016, the Service issued a positive finding on Guardians’ petition ...

This week, the U.S. Fish and Wildlife Service (FWS) published a 12-month finding on a petition to revise the critical habitat designation for the endangered Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) under the Endangered Species Act (ESA).  The Mount Graham red squirrel is a subspecies of red squirrel occurring only in certain high-elevation areas of the Coronado National Forest in Arizona. 

In December of 2017, a group of eNGOs including the Center for Biological Diversity submitted a petition to FWS, requesting that the agency expand the subspecies’ ...

The U.S. Fish and Wildlife Service (Service) recently announced its finding that three salamander species do not warrant listing as endangered or threatened species under the Endangered Species Act (ESA). The Service’s announcement follows a court-approved settlement agreement in which the Service agreed to make a 12-month finding for the Shasta salamander (Hydromantes shastae), Samwel salamander (H. samweli), and Wintu salamander (H. wintu). The finding comes despite concerns from some environmental groups that a proposed project to raise the height of the Shasta Dam and ...

The California Fish and Game Commission deferred the decision on whether to make the western Joshua tree a candidate for listing to a special meeting in September 2020. In a hearing on August 20, 2020, the Commission heard a wide variety of perspectives on whether listing the species may be warranted. The California Department of Fish and Wildlife’s 90-day evaluation recommended a “may be warranted” finding but at the hearing Director Bonham indicated he was open to deferring the decision in order to work with the stakeholders ... 

On February 5, 2020, the National Marine Fisheries Service (NMFS) issued its 12-month finding on the petition to list summer-run steelhead in Northern California (Oncorhynchus mykiss irideus) as endangered under the Endangered Species Act (ESA), concluding that listing is not warranted because the summer-run steelhead does not qualify as a distinct population segment of the Northern California steelhead. Despite the negative finding, the summer-run steelhead is still protected under the ESA. How is that possible, you ask?

Simple, I say. The summer-run and winter-run ...

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) ...

Over the last few weeks, besides proposing to remove the gray wolf (Canis lupus) from the List of Endangered and Threatened Species (which we covered here), the U.S. Fish and Wildlife Service (Service) has made a few other moves related to the Endangered Species Act (ESA).

On Monday, April 8, 2019, the Service published a final rule, removing one species from the List of Endangered and Threatened Species, adding 16 separate species to the list, and updating the existing entries for 17 more species.  Specifically, the Service added the following species to the ESA List: Gulf grouper ...

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 Thursday, October 5, 2017, the U.S. Fish & Wildlife Service (Service) announced 12-month not warranted findings on petitions to list 25 species as endangered or threatened under the Endangered Species Act (ESA).  It is likely that the Service’s not warranted findings represent the Trump administration’s departure from the previous administration’s  90-day determinations wherein the Service found that the petitions contain substantial information that listing may be warranted.  For over half of the 25 species, the not warranted findings satisfy the terms of various ...

In a recent decision, the U.S. Court of Appeals for the District of Columbia affirmed the dismissal of an environmental organization's Endangered Species Act (ESA) claim, concluding that the organization lacked standing because the informational injury alleged in the complaint could not, as a matter of law, arise until after the U.S. Fish and Wildlife Service (Service) issued a 12-month finding under the ESA, and the complaint expressly alleged that the Service had not issued such a finding.  Friends of Animals v. Jewell, No. 15-5223 (D.C. Cir. July 15, 2016).

Under Section 4 ...