ML610298828
作者
Mark Robbins 该用户提供的媒体文件 档案
日期
地点
Perry Lake--Dam
Jefferson, Kansas, 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
Estimated by 500s in flocks in relatively close groups, = ca 18,000, the far flock on water appeared even larger, so used a conservative 20,000 for that group. Finally to the NE there were several thousand in the air swirling above the water- estimated 5,000 for that. I consider this a conservative estimate of that group. Just under a thousand were leaving when I arrived. About 800 perched on roof top of boat storage area. Suspect if a more accurate estimate were made it might be over 50,000 were present.
技术信息
- 型号
- DSC-RX10M4
- ISO
- 250
- 焦距
- 105.8 mm
- 闪光
- Flash did not fire
- 光圈
- f/4.0
- 快门速度
- 1/1000 sec
- 尺寸
- 5472 pixels x 2242 pixels
- 原始文件大小
- 3.33 MB