Carlsbad Fish & Wildlife Office
Pacific Southwest Region

Threatened and Endangered Species


The U.S. Fish and Wildlife Service (Service) is responsible for administering and implementing the Endangered Species Act (ESA) to conserve, protect, and recover federally listed species of plants and animals native to the United States and its territories. Federally listed species are "endangered" species - in danger of extinction throughout all or a significant portion of its range, or "threatened" species - likely to become endangered in the foreseeable future.

The Service also enforces federal wildlife laws, manages migratory bird populations and National Wildlife Refuges, restores nationally significant fisheries, conserves and restores vital wildlife habitat and assists other governments with conservation efforts.

The roles and responsibilities of the Endangered Species Program and the Carlsbad Fish and Wildlife Office (CFWO) are numerous and include the following: Habitat Conservation Planning, Consultations, Listing/Reclassification/Delisting Species, Critical Habitat, Recovery, Environmental Contaminants, & Grants

Did You Know?

Within the CFWO and PSFWO area of responsibility, we have 107 federally threatened and endangered species, over 22 million people, 48,000 square miles, 27 Congressional districts, and 35 federally recognized tribes.

Our offices work in partnership with others to protect and recover threatened and endangered species and their habitats to ensure their continued existence. We also work to conserve species at-risk by promoting conservation efforts with our partners so that protection under the ESA is not needed.

    Hidden Lake bluecurls Photo Credit: J.Snapp-Cook/USFWS

Who We Work With

Federal, State & Local Agencies
Nonprofit Organizations
Tribal Governments
Private Landowners

Through these cooperative partnership efforts, fish, wildlife, plants, and their ecosystems have a greater opportunity of reaching a secure and self-sustaining status in the wild.

To learn more about our programs and the conservation tools we use to work with groups and individuals to help conserve endangered and at-risk species, visit our Conservation Partnerships Program and Habitat Conservation Plans sites.

Related Links
Improving ESA Implementation
Endangered Species Bulletin
Why Save Species?
Field Notes


For a complete list of species and associated documents within our area of responsibility, please go to our CFWO Species Status List web page.

For news releases and associated species documents, you may find them at CFWO Species News, Photos and Info.

If you are looking for copies of regulatory documents relating to threatened and endangered species listed in the U.S., the Service maintains a comprehensive set of documents on its Environmental Conservation Online System (ECOS). The ECOS website contains copies of Federal Register and Recovery documents, as well as other biological information about threatened and endangered species.

In order to carry out the purposes of the ESA, the Service creates both rulemaking and non-rulemaking documents reflecting policies, regulations, and legislation. Rulemaking and non-rulemaking documents are posted on the Internet at is a one-stop electronic document system that allows the public to easily search, view, and comment on numerous federal regulatory actions (e.g. Federal Register Notices, supporting analyses, etc.) from more than 35 Departments and Agencies. By having these rulemaking and non-rulemaking documents accessible on a single Internet site, the public can more easily participate in the regulatory process and have more efficient interactions with its government.

Another place to locate specific documents pertaining to endangered species is within our Endangered Species Act Document Library.




Carlsbad Fish & Wildlife Office Home
Pacific Southwest Region (Region 8) Home