ML24011281
- 年齡
- 未確定
- 性別
- 未確定
影音備註
Communal Roost #1
觀察細節
There are four traditional communal roosts at Garden of the Gods, used by migrant swifts. This one is on the west side of the northwest face of South Gateway Rock. My estimate of 140 individual birds is conservative. This is just a small part of the larger group exploring the roost before making an entrance. The entry process to get all the swifts into this communal roost takes at least 15 minutes. A large group flies overhead before this time, the swifts circling and passing low over the roost location from time to time.
技術資訊
- 型號
- Canon EOS 7D
- ISO
- 400
- 焦距
- 420 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/5.6
- 快門
- 1/2000 sec
- 次方
- 1050 pixels x 824 pixels
- 原始檔案大小
- 352.58 KB