ML119793641
作者
Larry Clarfeld 该用户提供的媒体文件 档案
日期
地点
Saint Michael's College Natural Area
Chittenden, Vermont, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
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媒体文件注释
ID confirmed by vocalization.
观察细节
heard and seen around the compost. Classic nasal calls heard repeatedly. photos. Note apparent molting of secondaries. I have read that molt occurs later in Fish Crows than American Crows but am not aware of any literature (particular to VT) that would suggest this timing is sufficient to ID an individual visually. In flight, wings appeared shorter and more pointed than American Crow with a somewhat more pigeon-like flight pattern.
技术信息
- 型号
- NIKON D7000
- ISO
- 200
- 焦距
- 300 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/500 sec
- 尺寸
- 2435 pixels x 1623 pixels
- 原始文件大小
- 1.65 MB