kHz
ML611088256
作者
Ben Newhouse 该用户提供的媒体文件
日期
地点
Bolsa Chica--Brightwater area
Orange, California, United States
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观察细节
Dull olive colored legs, light barring on flanks, white eyebrow, medium sized plump shorebird. Made a whistle call when flushed by a willet. The SBDO flushed at the same time, so the foreground chatter in this recording is mostly SBDO. But the knot call is at 1.0sec, a soft whistle at about 2k, just shy of 1sec in duration, shaped like a very slight up/down motion. All that matches the red knot vocalizations — reference recording at https://macaulaylibrary.org/asset/33229401
技术信息
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- 话筒
- 附件
- 原始文件大小
- 1.19 MB