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 27, 2024, Governor Gavin Newsom signed California Assembly Bill 1889, the “Room to Roam Act.” The Act amends Section 65302 of the Government Code to add certain fish, wildlife, and habitat connectivity considerations to the provisions governing general plans for land use in Californian cities and counties. In light of the Act’s passage, cities and counties will be required to update their general plans to include considerations regarding wildlife movement within or around a proposed project area upon the next update of the local government’s general plan ...

On September 17, 2024, the U.S. Fish and Wildlife Service (Service) proposed listing the Kentucky creekshell (Villosa ortmanni) as an endangered species under the Endangered Species Act (ESA) and designating critical habitat for the species (Proposed Rule). The freshwater mussel is found in rivers and streams in both Kentucky and Tennessee. Historically, the species was found in thirteen river basins in southern Kentucky and northern Tennessee, but it has been extirpated from four of those basins.

The Proposed Rule identifies water quality degradation, urbanization ...

On June 27, 2024, the U.S. Fish and Wildlife Service (Service) issued a final rule listing the Suwannee alligator snapping turtle (Macrochelids suwanniensis) as a threatened species with a 4(d) rule under the Endangered Species Act (ESA).

The Suwannee alligator snapping turtle is a large, freshwater turtle species occurring in the Suwannee River basin in Florida and Georgia. The species’ listing follows a 2012 petition filed by the Center for Biological Diversity to list 53 amphibians and reptiles, including the alligator snapping turtle (Macrochelys temminckii), which, due ...

Recently, the California Assembly passed Assembly Bill 1889, the “Room to Roam Act.” If enacted without changes, the Room to Roam Act would amend Section 65302 of the Government Code to add certain “fish, wildlife, and habitat connectivity” considerations to the provisions governing general plans for land use in Californian cities and counties.

The bill’s passage in the Assembly is a significant development in efforts to reform California’s land use and wildlife conservation policies, as the bill would require local land use decisions to factor in wildlife movement ...

On May 20, 2024, the U.S. Fish and Wildlife Service (Service) published a final rule listing the dunes sagebrush lizard (Scleroperus arenicolus) (DSL) as endangered (Final Rule) under the Endangered Species Act (ESA). In the Final Rule, the Service identifies habitat loss and fragmentation of dunelands associated with oil and natural gas production and frac sand mining as the primary threat to the species, with climate change causing additional impacts.

The Service received more than 18,000 comments on its proposed rule to list the DSL, with many urging the Service not to list the ...

On February 1, 2024, the Center for Biological Diversity (CBD) filed an amended complaint (Complaint) in the U.S. District Court of Arizona, alleging the U.S. Fish and Wildlife Service (Service) failed to timely analyze the harmful effects of six pesticides on species listed under the Endangered Species Act (ESA) and their habitats. The lawsuit stems from the Service’s failure to issue biological opinions to the Environmental Protection Agency (EPA) in response to that agency’s request for formal ESA section 7 consultation with the Service over the EPA’s 2017 and 2021 ...

On May 15, 2023, the U.S. Fish and Wildlife Service (Service) issued two mitigation policies: one titled “Mitigation Policy” and another titled “Endangered Species Act Compensatory Mitigation Policy.” The Mitigation Policy provides a framework to inform Service mitigation procedure and policy, while the Endangered Species Act (ESA) Compensatory Mitigation Policy provides guidance on implementation of the ESA through compensatory mitigation mechanisms. The Service states that both policies are intended as guidelines for Service personnel to follow when ...

On April 13, 2023, the United States Fish and Wildlife Service (“Service”) published a proposed rule to revise the critical habitat designation for the rufa red knot (Calidris canutus rufa). The red knot is a shorebird that migrates annually between the Canadian Arctic and wintering regions to the south, including the Southeast United States, the Northeast Gulf of Mexico, northern Brazil, and Tierra del Fuego at the southern tip of South America. During both northbound (spring) and southbound (fall) migrations, red knots use key staging and stopover areas to rest and feed.  

The ...

Today, the U.S. Fish and Wildlife Service (Service) proposed to list two snake species, the Key ring-necked snake (Diadophis punctatus acricus) and the rim rock crowned snake (Tantilla oolitica), as endangered under the Endangered Species Act (ESA). The Service also proposed to designate critical habitat for these nonvenomous snakes, including approximately 2,604 acres in Monroe County and approximately 5,972 acres in Miami-Dade County and Monroe County, Florida for the Key ring-necked snake and rim rock crowned snake, respectively. The proposal comes as a result of a ...

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 ...

For the magnificent ramshorn (Planorbella magnifica), a fresh-water snail species native to southeastern North Carolina, efforts to secure protection under the federal Endangered Species Act have progressed at a snail’s pace. Today, twelve years after environmentalists originally petitioned the U.S. Fish and Wildlife Service (Service) to list the species, the Service proposed to list the magnificent ramshorn as endangered, and to designate two ponds spanning 739 acres as critical habitat for the species. The proposed rule was prompted by a lawsuit filed by the Center of ...

On June 24, 2022, the U.S. Fish and Wildlife Service and the National Marine Fisheries Service (collectively, Services) published a final rule rescinding the Trump administration’s 2020 final rule defining “habitat” for the purpose of informing designation of areas as “critical habitat” (2020 Rule) under the Endangered Species Act (ESA). In rescinding the definition of “habitat,” the Services explained they were removing an “excessive constraint” on the agencies’ ability to designate critical habitat under the ESA. Specifically, the Services ...

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 ...

This week, the U.S. Fish and Wildlife Service (Service) issued a proposed rule to list the sand dune phacelia (Phacelia argentea) as threatened under the Endangered Species Act (ESA), along with a proposed section 4(d) rule that would prohibit several activities with respect to the species.  The proposed rule also includes a designation of approximately 252 acres of critical habitat in Del Norte County in California, and Coos and Curry Counties in Oregon. 

The sand dune phacelia is an evergreen, herbaceous, flowering perennial in the forget-me-not family of plants.  It blooms from ...

On February 9, 2022, the U.S. District Court for the District of Colorado found that the Bureau of Land Management (BLM) violated the Endangered Species Act (ESA) when it failed to reinitiate consultation with the U.S. Fish and Wildlife Service (Service) prior to approving oil and gas leases. BLM had issued the leases for parcels of land in Southwest Colorado located within Gunnison sage-grouse (Centrocercus minimus) habitat and other proposed and existing areas of environmental concern.

The ESA requires federal agencies to review federal actions “at the earliest possible time ...

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 ...

The U.S. Fish and Wildlife Service (Service) has issued a final rule reclassifying the Morro shoulderband snail (Helminthoglypta walkeriana) from endangered to threatened under the Endangered Species Act (ESA). The final rule also includes a rule issued under ESA section 4(d) to provide for the conservation of the species.

The Morro shoulderband snail, or banded dune snail, is a type of terrestrial snail named after the dark band on the shoulder of its shell. The species is typically found in dense clumps of grass, young patches of ice plant, and stockpiled anthropogenic ...

On January 25, 2022, the U.S. Fish and Wildlife Service (Service) issued a proposed rule to list the Sacramento Mountains checkerspot butterfly (Euphydryas anicia cloudcrofti) as endangered under the Endangered Species Act (ESA).

The Sacramento Mountains checkerspot butterfly is a small butterfly with dark brown, red, orange, and cream coloring, punctuated by black spots and dark lines, on its wings. The butterfly is a subspecies of the Anicia checkerspot, or variable checkerspot, in the Nymphalidae family, and is native to the Sacramento Mountains in south-central New ...

This week, I published a post on the Center for California Water Resources Policy and Management’s DeltaCurrents blog discussing the Biden administration’s proposal to rescind the definition of habitat.  The definition was promulgated by the Trump administration in response to the decision of the U.S. Supreme Court in 2018 in Weyerhauser Co. v. U.S. Fish and Wildlife Service, a case involving a challenge to the rule designating critical habitat for the dusky gopher frog in the American southeast. … 

On June 4, 2021, the Biden administration announced its intent to rescind or revise several implementing regulations for the Endangered Species Act (ESA) finalized under the prior administration. The U.S. Fish and Wildlife Service (Service) has not yet published these proposed rules in the Federal Register, nor has the Service provided the exact dates when it intends to publish the proposed rules.

In its announcement, the Service indicates its intent to rescind regulations governing how the Service conducts critical habitat exclusion analyses under ESA section 4(b)(2) and how ...

This week, I published a post on the Center for California Water Resources Policy and Management’s DeltaCurrents blog discussing the role of conceptual ecological models in implementing the federal Endangered Species Act. Conceptual ecological models are a specialized subset of conceptual models generally intended to describe the environmental factors that affect an ecological community, a species, or a population. Conceptual ecological models are useful in a variety of contexts ranging from development of research proposals and monitoring schemes, to regulatory ...

On January 20, 2021, President Biden announced his administration will review regulatory actions taken between January 20, 2017 and January 20, 2021 in accordance with an Executive Order titled “Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis” (EO). Among the agency actions to be reviewed under the EO are a number of regulations and policies finalized by the Trump Administration involving Endangered Species Act (ESA), Migratory Bird Treaty Act (MBTA), and other related statutes.

An initial pre-publication announcement ...

On December 15, 2020, the U.S. Fish and Wildlife Service and National Marine Fisheries Service (collectively, the agencies) released a pre-publication version of a final rule providing a definition of “habitat” for the purpose of informing designation of areas as “critical habitat” under the Endangered Species Act.  The agencies released a proposed rule defining habitat in August 2020 in response to a unanimous decision by the U.S. Supreme Court in 2019 overturning a lower court decision that upheld a controversial determination of critical habitat by the U.S. Fish and ...

The United States Fish and Wildlife Service ("Service") recently released a pre-publication version of its final rule to reclassify the American burying beetle (Nicrophorus americanus) from endangered to threatened under the Endangered Species Act (“ESA”).  The final rule will also include 4(d) rule provisions that specify when the ESA section 9 take prohibitions will apply to the beetle.

The American burying beetle, which gets its name from its tendency to burrow under vegetation or into soil during the daytime and throughout the winter hibernation season, is the largest ...

On September 8, 2020, the U.S. Fish and Wildlife Service (USFWS) published a proposed rule codifying procedures for excluding areas of “critical habitat” under section 4 of the Endangered Species Act (ESA). ESA section 4(b)(2) provides discretionary authority to the USFWS and National Marine Fisheries Service (NMFS), as administrators of the ESA, to exclude certain areas from critical habitat designations for species within their purview. These agencies can exclude areas from a critical habitat designation where the agencies conclude the benefits of excluding the areas ...

The Departments of Commerce and the Interior (Departments) have completed a proposed rule to define the term “habitat” as that term is used in the context of designating “critical habitat” under the Endangered Species Act (ESA). The proposed rule will soon be published in the Federal Register. Upon publication, the public will be given 30 days to submit comments. If finalized, the definition will be included in the joint regulations developed by the two Departments to implement section 4(a)(3)(A)(i) of the ESA. The ESA, itself, defines the term “critical habitat” but ...

Nossaman’s Environmental Practice attorneys will be off to a great start in 2019 presenting at many key events around the U.S. focused on endangered species and environmental issues.

On the heels of the recent U.S. Fish and Wildlife Service (Service) decision not to list the greater sage grouse (Centrocercus urophasianus) under the Endangered Species Act and the concurrent Bureau of Land Management (BLM) issuance of Records of Decision on over 98 land use plans focused on sagebrush habitat, the United States Geological Survey (USGS)  and many other agencies announced their issuance of part one of a three-part handbook series focused on sagebrush steppe ecosystems.  Several federal and state entities, including the U.S. Joint Fire Science Program and National ...

On August 4, 2014, the U.S. Fish and Wildlife Service (Service) announced its decision to list two small Texas minnows -- the sharpnose shiner (Notropis oxyrhynchus) and smalleye shiner (N. buccula) -- as endangered under the Endangered Species Act (ESA).  The two Texas minnows, which have been candidates species since 2002, measure less than 2 inches and have a life span of less than three years.  According to the announcement issued by the Service, the "two primary  factors affecting the status of the shiners are river fragmentation and alterations of the natural stream flow regime ...

On August 12, 2013, the National Marine Fisheries Service refused to list the alewife herring (Alosa pseudoharengus) and blueback herring (Alosa aestivalis), concluding that based on the best scientific and commercial data available, neither species warranted protection under the Endangered Species Act.  The determinationn was in response to a petition submitted by the Natural Resources Defense Council.  The news was not all bad for the herring, however, as the National Marine Fisheries Service also stated that it will be working with the Atlantic States Marines ...

Yesterday, the National Marine Fisheries Service issued a notice of proposed rule to designate approximately 1,184 square miles of marine habitat in the Puget Sound as critical habitat for the threatened distinct population segment of yelloweye rockfish (Sebastes ruberriums), the threatened distinct population segment of canary rockfish (Sebastes pinniger), and the endangered distinct population segment of bocaccio (Sebastes paucispinus).  The notice states that comments on the proposed rule are due on November 4, 2013, and requests for public hearing must be made in ...

On January 10, 2013, the United States District Court for the District of Alaska issued an order (pdf) vacating the U.S. Fish and Wildlife Service's critical habitat designation for the polar bear after concluding that the Service failed to comply with substantive and procedural requirements in the Endangered Species Act.  Specifically, the district court found that the administrative record produced by the Service failed to contain evidence of the essential "physical or biological features" necessary to justify the designation of two large areas as critical ...

On January 2, 2013, the U.S. Fish and Wildlife Service (Service) issued a final rule increasing the critical habitat designated for the southwestern willow flycatcher (pdf) (Empidonax traillii extimus).  The flycatcher is a small migratory bird (approximately 6 inches long) that nests in dense riparian habitats along streams, lakesides, and other wetlands.  The Service listed the flycatcher as endangered in 1995, and in 1997 issued an initial critical habitat designation.  Shortly thereafter, however, the New Mexico Cattle Growers' Association filed a lawsuit ...

Effective August 13, 2012, the Chupadera springsnail's 28-year candidacy for listing will be over.  In a final rule (pdf) issued July 12, 2012, the U.S. Fish and Wildlife Service listed the Chupadera springsnail (Pyrgulopsis chupaderae)  as endangered, and designated critical habitat for the species in the only two units where it is known to occur in Socorro County, New Mexico.

The Chupadera springsnail is a tiny freshwater snail endemic ot Willow Spring and an unnamed spring nearby located on private land near the southeast end of the Chupadera Mountains.  Because the ...

On November 16, 2011, the United States Court of Appeals for the Ninth Circuit issued a ruling (PDF) affirming a lower court’s decision (PDF) that two U.S. Fish and Wildlife Service’s (FWS) biological opinions (BiOp) for a proposed 1500-acre mining project in the Cabinet Mountain Wilderness on the Kootenai National Forest met the legal standards set forth in the Endangered Species Act and Administrative Procedure Act. The Court upheld the BiOp’s conclusions that construction and operation of the mine would not adversely modify bull trout critical habitat or ...

On July 22, 2011, the U.S. Court of Appeals for the District of Columbia Circuit held that the Fish and Wildlife Service (Service) erred when it designated 143 acres of private property as critical habitat for the endangered San Diego fairy shrimp (Branchinecta sandiegonensis) based on a single observation of the shrimp on the property in 2001.

The question presented in Otay Mesa Property L.P. v. U.S. Dept. of the Interior, No. 10-5204, 2011 U.S. App. LEXIS 14998 (D.C. Cir. July 22, 2011) was quite narrow: whether a single confirmed sighting of the endangered fairy shrimp in a ...

As explained in a previous posting, in November 2010, the U.S. Fish and Wildlife Service designated 187,157 square miles of land in, and sea ice adjacent to, Alaska as critical habitat for polar bear.

Shortly after the final rule was published in the Federal Register, the Alaska Oil and Gas Association (AOGA) sent a sixty-day notice of intent to sue (PDF) the Service, alleging that the designation violates the Endangered Species Act (ESA).

Making good on its notice, on March 1, 2011, AOGA filed a complaint (PDF) in federal court seeking to invalidate the designation, which the trade ...

On November 24, 2010, the U.S. Fish and Wildlife Service announced a final rule (PDF) designating 187,157 square miles of on- and off-shore habitat in northern Alaska as critical habitat for two populations of polar bear listed as threatened under the Endangered Species Act. 

The Service originally proposed to designate 200,541 square miles of critical habitat.  However, the final designation removed land that turned out to lie beyond the U.S. territorial waters, five U.S. Air Force (USAF) radar sites, the Native communities of Barrow and Kaktovik, and all existing man-made ...