ML130390311
- 性別與年齡
- 年齡性別未知 - 1
- 行為
- 飛行中
觀察細節
With Snow Geese. In photo below, it is at bottom center. The dark head with dark neck is a feature of Greater White-fronted Goose. However, this feature is shared with juvenile of Snow and Ross's Goose. So note lack of black primaries and presence of black tail, which definitely separates Greater White-fronted Goose from these two other species at whatever age. White undertail coverts and vent provide confirming marks.
其他鳥種
技術資訊
- 型號
- DSC-HX200V
- 鏡頭
- 4.8-144mm f/2.8-5.6
- ISO
- 100
- 焦距
- 141.4 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/5.6
- 快門
- 1/500 sec
- 次方
- 1382 pixels x 987 pixels
- 原始檔案大小
- 807.36 KB