kHz
ML617993423
作者
Steve Rottenborn 该用户提供的媒体文件 档案
日期
地点
Lover's Ln.
San Benito, California, United States
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观察细节
Good concentration, all near north end/county line. Three were perched in walnut tree near abandoned house. Initially, one bird was singing the majority of the "dawn song" while a second bird sitting a few feet away repeatedly gave low "che-beer" calls after each phrase of the other bird's song, as though they were duetting. The bird singing the main part of the song then flew away, and the third bird in the tree started giving the main part of that song, with the second bird continuing to give the "che-beer" calls interspersed within the other’s song (always at the same locations within the song).
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- 152.22 KB