Mountain-Prairie Region
Trumpeter Swan
News and Information

     line art of trumpeter swan                                  

USFWS Line Art by Robert Savannah

Rocky Mountain Population Status Assessments

High Plains Flock (Interior Population) Status Assessments

Other Issues:

90-Day Finding for Petition to List the Trumpeter Swan (Dated 1/28/03) (PDF file, 8 pages)
News Release
January 28, 2003 - U.S. Fish and Wildlife Service Finds Trumpeter Swan Flock not an Endangered Population
An Assessment of Information pertaining to the Status of Trumpeter Swans, Prepared by Dubovosky and Cornely
(revised 10/10/02) (PDF file, 17 MB)
Questions and Answers

  • Trumpeter Swan Fact Sheet

  • FWS Acknowledgement of Petition to list the Trumpeter Swan 

  • DISCLAIMER:  The Trumpeter Swan petition is available here in Adobe Acrobat 4.0 (PDF) format for viewing and/or downloading. The document was converted to an electronic format using a scanner and an optical character recognition (OCR) application. Fish and Wildlife Service staff have made every effort to preserve the original format and text, but some discrepancies may occur. The document available below included the petition and bibliography. Note that the materials in the appendices are too extensive to include on this site. Please contact the petitioners if you have questions concerning the document, citations or appendices.

  • The Service’s Listing Priority Guidance:

    The U. S. Fish and Wildlife Service has developed a priority system designed to direct its efforts towards the plants and animals in greatest need of protection.

    The magnitude of threat is the most important consideration, followed by the immediacy of the threat and the taxonomic distinctiveness of the species (the most distinctive is a monotypic genus, then a full species, and lastly a subspecies, variety, or vertebrate population).

    In an effort to continue to address the needs of species facing the greatest threats, the new priority guidance establishes the following priorities for listing endangered species:

      Priority One: Emergency listings for species facing a significant risk to their well-being.

      Priority Two: Final decisions on pending proposed listings.

      Priority Three: Determining whether candidate species should be listed.

      Priority Four: Findings on petitions to add species to the list and petitions to delist or reclassify species.

    Critical habitat actions such as determining whether it is prudent to designate critical habitat, proposing to designate critical habitat, and making final designations of critical habitat will no longer fall under this guidance. The Service expects to complete a number of critical habitat actions during FY 2000 which will be funded separately from other listing actions.

Last updated: September 26, 2008