kHz
ML145603861
作者
Jack Bushong 该用户提供的媒体文件 档案
日期
地点
Louisville (town)
Boulder, Colorado, United States
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观察细节
Unexpected here, although likely annual or semi-annual in eastern Boulder County. Initially heard giving incessant toots from backyard in the downtown, and later in a thick row of spruce several hundred yards away. Unlike the vocalizations of other species except for pygmy-owl, which is predominantly diurnal. No visual, but heard from close distance.
技术信息
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- 原始文件大小
- 1.02 MB