ML620034330
作者
Anonymous 该用户提供的媒体文件
日期
地点
Allens Pond WS--Beach Loop (Mass Audubon)
Bristol, Massachusetts, United States
该地点产生的媒体文件 配图名录- 年龄和性别
- 年龄未知雌鸟 - 1
观察细节
First attached photo depicts 3 female Eiders. While I had never encountered one, the middle duck appears to bear three characteristics of a female King Eider: 1. The bill appears black 2. the head appears rounded and 3. the duck in question seems to lack a long, sloping forehead like the female Common Eiders flanking it. 2nd attached photo is a cropped enlargement depicting a female Common Eider on the left and the Eider in question on the right.
技术信息
- 焦距
- 600 mm
- 光圈
- f/6.7
- 快门速度
- 1/1500 sec
- 尺寸
- 856 pixels x 675 pixels
- 原始文件大小
- 335.42 KB