ML614503785
- 年龄
- 未说明
- 性别
- 未说明
观察细节
Close count. A constant stream heading south from approximate 4:15-5:30pm. Presumably heading from landfill to roost. Medium altitude. Easily counted by naked eye when overhead but used binoculars when further away. Counted from main grassy area of park. Probably missed some at the beginning but paid full attention once we realized how many were coming over. Counted by ones as best as possible, clicking once for every ten. Identified by nasally calls. No American Crows heard. The line was mostly overhead or drifting further inland. An occasional change in direction where some were heading out over the water, possibly crossing the river.
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF400mm f/5.6L USM
- ISO
- 640
- 焦距
- 400 mm
- 闪光
- Flash did not fire
- 光圈
- f/7.1
- 快门速度
- 1/2000 sec
- 尺寸
- 3403 pixels x 2269 pixels
- 原始文件大小
- 4.64 MB