ML617439520
作者
Rob Fowler 该用户提供的媒体文件 档案
日期
地点
Arcata Marsh--Oxidation Ponds
Humboldt, California, United States
该地点产生的媒体文件 配图名录- 年龄和性别
- 成年雌鸟 - 1; 成年雄鸟 - 1
媒体文件注释
In this photo you can see that the wingbar is clearly broader than the trailing edge of the speculum.
观察细节
Adult male with a female. Photos of female speculum clearly show a broader wingbar vs the trailing edge. According to Reeber's (2015) waterfowl book this is probably the best (only?) way to tell female crecca vs. carolinensis. I've never documented a female crecca in the US so open to suggestions from anyone with more experience.
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF400mm f/5.6L USM
- ISO
- 320
- 焦距
- 400 mm
- 闪光
- Flash did not fire
- 光圈
- f/5.6
- 快门速度
- 1/3200 sec
- 尺寸
- 1302 pixels x 868 pixels
- 原始文件大小
- 651.3 KB