ML406119581
Emperor x Greater White-fronted Goose (hybrid) Anser canagicus x albifrons
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
A mid sized dark goose with a mostly white head. The belly, chest and neck are darker then the back. Back brown with more blue/gray tones then the rest of the body. Rump and tail pale. The head is primarily white but has a triangular brown check patch. Bill pale with pink distal half and a large white nail. Bill also had a thin black "grin patch". Bill is thicker and shorter then that of a greater white-fronted goose. Based on comparisons of photos of captive raised emperor goose x GWFG hybrids that I found online and 2 other observations I made of emperor goose X GWFG hybrids a few years prior to seeing this bird, this bird shows stronger emperor goose plumage and bill shape/color. Based on this I think this could be a F2 hybrid (i.e. 75% emperor goose 25% GWFG).
テクニカル・インフォメーション
- モデル
- Canon EOS 7D Mark II
- レンズ
- EF600mm f/4L IS II USM +1.4x III
- ISO
- 400
- 焦点距離
- 840 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/9.0
- シャッタースピード
- 1/1250 sec
- 大きさ
- 1615 pixels x 1077 pixels
- オリジナルのファイルサイズ
- 628.08 KB