ML26279861
作者
Stephen Gast 该用户提供的媒体文件 档案
日期
地点
Katy Prairie Conserv.--Mary Manor
Waller, Texas, 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
This is a minimum count made from analysis of photos of birds in flight. Some additional birds came into the roost after photos were taken. Maximum number could be as high as 2350. Photos attached were taken 2 seconds apart. Birds were flying right to left. Note tower in background as marker, It was estimated that approximately 350 birds crossed that point between the two photos to arrive at estimate of 2100. These birds had all arrived in groups of 30 to 200. They then flushed at 7:38 pm before resettling for the evening.
技术信息
- 型号
- Canon EOS 7D Mark II
- ISO
- 2000
- 焦距
- 140 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/6.3
- 快门速度
- 1/250 sec
- 尺寸
- 5419 pixels x 1566 pixels
- 原始文件大小
- 1.44 MB