Skip to main content
U.S. flag

An official website of the United States government

Attempted kleptoparasitism of osprey by great blue herons

Author(s):

Year:

1998

Publication type:

Scientific Journal (JRNL)

Primary Station(s):

Rocky Mountain Research Station

Source:

Wilson Bulletin. 110: 560.

Description

Two attempts of kleptoparisitism of Ospreys (Pandion haliaetus) by Great Blue Herons (Ardea herodias) were observed in Grand Teton National Park, Wyoming. Two herons vocalized and bill thrusted at Ospreys as they emerged from the water following dives for fish. Although both attempts were unsuccessful (the Ospreys failed to capture a fish), the intensity of the attacks suggest that Great Blue Herons may be capable of taking fish from Ospreys.

Citation

Squires, John R. 1998. Attempted kleptoparasitism of osprey by great blue herons. Wilson Bulletin. 110: 560.

Publication Notes

  • 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.
https://www.fs.usda.gov/treesearch/pubs/52044