ML114156291
作者
Andrew S. Aldrich 该用户提供的媒体文件 档案
日期
地点
Montrose Point Bird Sanctuary, Lincoln Park, Chicago
Cook, Illinois, United States
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
观察细节
Identified as jaeger by shape (and alerted to its presence by the RBGU on the beach taking off simultaneously.) Initial impression was that it was small and graceful in comparison to RBGU nearby. Appeared dark at a distance from above, but had a noticeable white flash in the underwing. Also a pale collar and rump. It flew in much closer, maybe within 20-30 yards and Terry Walsh and I could see it had only 2 obvious white shafts on the upperwing. The extended central tail feathers were also rounded, not pointed. Photos show neatly barred black and white undertail and rump.
技术信息
- 型号
- Canon EOS 70D
- 镜头
- EF-S55-250mm f/4-5.6 IS
- ISO
- 100
- 焦距
- 250 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/7.1
- 快门速度
- 1/500 sec
- 尺寸
- 2131 pixels x 1509 pixels
- 原始文件大小
- 1.45 MB