ML135343521
- 性別與年齡
- 雄成鳥 - X
影音備註
I'm quite positive that this picture, too, is of the AHY male, as it shows a number of white flecks on the primary coverts that were missing from the preceding images.
觀察細節
**Very late. As if it wasn't surprising enough to find a single Common Nighthawk in mid-January, I documented TWO birds hawking for insects low over Campus Lake for the duration of ~30 minutes, after which I left the birds there. Photos of both birds appear to eliminate Lesser Nighthawk due to the white bar being relatively close to the base of the primaries (and the primary coverts); clean, mostly unspotted, dark primaries and secondaries; and a distinctly pale, contrasty gray bar on the upperwing coverts. The first bird lacked a white subterminal band to the tail and was thus a female or an immature male. The second individual, which seemingly materialized out of thin air around perhaps 5:20, was an AHY male, as evidenced by a complete white subterminal tail band. This follows on the heels of a couple late December reports (singles on 12/24 at University Lakes and 12/29 at Campus Lake). Silent.
技術資訊
- 型號
- Canon EOS 7D Mark II
- 鏡頭
- EF400mm f/5.6L USM
- ISO
- 6400
- 焦距
- 400 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/5.6
- 快門
- 1/400 sec
- 次方
- 3831 pixels x 2510 pixels
- 原始檔案大小
- 3.4 MB