Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub


    Trumpeter swans (Cygnus buccinator), in the winter, primarily, slept 42% of the time, fed 30%, swam 12%; and preened 7%. Comparisons of swan activities among die periods during the winter indicated they increased feeding throughout the day into night, when they fed at their highest rate. Swans spent more time sleeping as winter temperatures decreased; feeding mostly ceased when temperatures fell below approximately -17 C. Dominant activities in spring included feeding (45%), sleeping (17%), swimming (13%); and preening (12%). During spring, swans fed at a high rate throughout day and night, suggesting that spring use-areas may be important to swans depositing endogenous reserves before nesting.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Squires, John R.; Anderson, Stanley H. 1997. Changes in trumpeter swan (Cygnus buccinator) activities from winter to spring in the greater Yellowstone area. American Midland Naturalist. 138: 208-214.


    trumpeter swans, Cygnus buccinator, activities, feeding, nesting

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page