kHz
作者
Walter A. Thurber 该用户提供的媒体文件
日期
05:30
地点
Hacienda Los Pinos
Usulután, El Salvador
该地点产生的媒体文件 配图名录- 年龄
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- 性别
- 未说明
- 行为
- 飞行
- 发声
- 鸣叫; 非声音
- 回放
- 未说明
媒体文件注释
NOTES: FOR SEVERAL NIGHTS 200-400 TREE-DUCKS SPENT THE NIGHT IN THE LIMITED AREA OF THIS STREAM AND ITS FLOODED BANKS. ONE MORNING I ARRIVED AT DAWN INTENDING TO RECORD THEIR DEPARTURE. A BAND OF ABOUT 30 DUCKS SPRANG UPWARD, CALLING LOUDLY. THIS BA Sex: 300 UNKNOWNND WAS FOLLOWED BY OTHERS. THE LAST BIRDS DID NOT VOCALIZE SO MUCH BUT THE SWISH OF THEIR WINGS IN THE RECORDING ANNOUNCES THEIR PASSAGE. I ESTIMATE 300 BIRDS PASSED OVERHEAD IN ONE MINUTE. SLUGGISH, WEED-CHOKED STREAM WITH FLOODED BANKS. Other Behaviors: Depart, Establish Flock Contact. Habitat: Creek.
额外物种
技术信息
- 录音机
- UHER 4000 REPORT IC
- 话筒
- 附件
- Parabola 45.7cm (18in)
存档信息
- 已数字化
- 16 Aug 2005 - Mike Andersen