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Nesting by Golden Eagles on the North Slope of the Brooks Range in Northeastern Alaska

Journal of Field Ornithology
By: , and 

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Abstract

Twenty-two Golden Eagle (Aquila chrysaetos) nesting territories and 31 occupied eagle nests were documented on the north slope of the Brooks Range in northeastern Alaska, 1988-1990, in an area previously thought to be marginal breeding habitat for eagles. The mean number of young/successful nest was 1.25 in 1988, 1.27 in 1989, and 1.13 in 1990; means did not differ significantly among years. Eighty percent (20/25) of the nestlings for which age was estimated were assumed to have successfully fledged. Nesting success was 79% (11/14) in 1989, the only year nesting success could be determined. Laying dates ranged from 23 March (1990) to 11 May (1989) with mean estimated laying dates differing significantly among years. Annual variation in nesting phenology coincided with annual differences in snow accumulations during spring. These results indicate that Golden Eagles consistently and successfully breed at the northern extent of their range in Alaska, although, productivity may be lower than that for eagles at more southern latitudes.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Nesting by Golden Eagles on the North Slope of the Brooks Range in Northeastern Alaska
Series title Journal of Field Ornithology
Volume 66
Issue 3
Year Published 1995
Language English
Publisher Wiley
Contributing office(s) Alaska Science Center
Description 7 p.
First page 373
Last page 379
Country United States
State Alaska
Other Geospatial Brooks Range, North Slope