ML443585171
作者
Brian Sullivan 该用户提供的媒体文件 档案
日期
地点
Pt. Pinos--seawatch only
Monterey, California, United States
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
观察细节
The largest flight of this species that I've seen at Pt. Pinos, or anywhere for that matter. When I arrived at 4PM, big numbers were continuously streaming past the point, from just off the rocks to the limit of vision. Flock size numbered from 10s to many 100s. The volume of birds was impossible to count directly, so I did 1-minute counts every 15 min during the observation period, and extrapolated the total. 415: 2100; 430: 3500; 445: 3100; 500: 3600; 515: 2700; 530:2200; 545: 2400; 600: 1300; 615: 1200; 630: 1500; 645: 700. I will add video to document the count as best as I can.
技术信息
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- 附件
- 原始文件大小
- 251.43 MB