Aspen Bibliography

Visitation of high mountain bogs by golden eagles in the northern Great Basin

Document Type

Article

Journal/Book Title/Conference

Journal of Field Ornithology

Volume

62

Issue

1

First Page

46

Last Page

52

Publication Date

1991

Abstract

Golden Eagles (Aquila chrysaetos) were observed drinking and bathing in three high mountain bogs in the Jarbidge Mountains of northern Nevada. Six additional sites in the Jarbidge and two in the Warner Mountains of northern California showed evidence of drinking activity. These "eagle bogs" all shared four physical attributes that distinguished them from other high mountain bogs in these ranges. These attributes were: (1) association with a spring above the highest quaking aspen (Populus tremuloides), (2) presence of an open area containing pools (without steep or undercut banks) near the spring, (3) cover on three sides in the form of cliffs and/or dense coniferous woodlands at least 10 m away from the pools, and (4) a narrow opening in the cover (10-30 m), on the lower side of the bog followed by a steep drop. The frequency of Golden Eagle visitation strongly suggests that eagle bogs are an overlooked but important habitat requirement for the species in the Great Basin.

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