ML617439524
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
Adult male with a female. Photos of female speculum clearly show a broader wingbar vs the trailing edge. According to Reeber's (2015) waterfowl book this is probably the best (only?) way to tell female crecca vs. carolinensis. I've never documented a female crecca in the US so open to suggestions from anyone with more experience.
技術資訊
- 型號
- Canon EOS 7D Mark II
- 鏡頭
- EF400mm f/5.6L USM
- ISO
- 320
- 焦距
- 400 mm
- 閃光
- Flash did not fire
- 光圈值
- f/5.6
- 快門
- 1/3200 sec
- 次方
- 1385 pixels x 923 pixels
- 原始檔案大小
- 757.53 KB