ML317286721
Herring x Lesser Black-backed Gull (hybrid) Larus argentatus x fuscus
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
One apparent Herring Gull was obviously darker mantled than any others at this site. It was an adult bird with very streaked head, yellow eye, orange orbital ring, with what appeared to be an orange gape, large bill compared to Iceland or Lesser Black-backed and more like Herring. Typical YLGU seen in NL have head streaking worn away by this time and if its present , its confined to the head only. It appeared to have a shorter primary extension past the tail and deep-breasted in comparison to Herring or Lesser Black-backed. Size was very similar to other Herring Gulls in the area. Legs were obviously a dull yellow with feet yellowish pink. Very limited white on primaries feathers which is more in-keeping with LBBG. The bird was associating with other gulls, feeding and roosting, rather tame. Sought opinions from Alix d'Entremont, David Brown, Eric Mills, Rick Whitman, and Jim Edsall with photos and Diane LeBlanc while the bird was still present.
テクニカル・インフォメーション
- モデル
- Canon EOS 60D
- レンズ
- EF400mm f/5.6L USM
- ISO
- 2000
- 焦点距離
- 400 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/8.0
- シャッタースピード
- 1/4000 sec
- 大きさ
- 5184 pixels x 3456 pixels
- オリジナルのファイルサイズ
- 6.76 MB