ML181033051
作者
LynnErla Beegle 该用户提供的媒体文件 档案
日期
地点
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
- 未说明
- 行为
- 飞行
媒体文件注释
CHSW Migration flock entering chimney at 19:14 EDT. Most of flock is visible as a spiral.
观察细节
Started out about 500 but kept increasing until time of entry into N&O chimney (directly west of our location). Estimate, increased rapidly between 6:50 and 7:05 pm EDT. A few entered chimney early but main flow began at 19:10 through 19:20 with heaviest infow at 19:15. One estimate based on 5 birds a second for 10 minutes.
技术信息
- 型号
- COOLPIX S7000
- ISO
- 500
- 焦距
- 4.5 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/3.4
- 快门速度
- 1/8 sec
- 尺寸
- 4608 pixels x 3456 pixels
- 原始文件大小
- 6.25 MB