- 性別與年齡
- 成鳥,性別未知 - X
觀察細節
an adult bird first noted within the flock of Kumlien's gulls by the darker mantle (a few shades darker) and solid black primaries. closer observation revealed a dark iris. Photos show dark bar in P5, and dark outer edge to P9 - which is a slam dunk Thayer's Gull wing pattern. Every other adult Kumlien's Gull that I've seen and considered as a possible THGU failed to pass this test of a perfect spread wing pattern.
技術資訊
- 型號
- Canon PowerShot SX50 HS
- ISO
- 800
- 焦距
- 215 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/6.5
- 快門
- 1/1000 sec
- 次方
- 642 pixels x 482 pixels
- 原始檔案大小
- 40.85 KB