ML631780188
Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinis
投稿者
Sean Williams この投稿者による視聴覚メディア
日付
場所
East Harbor SP
Ottawa, Ohio, United States
この場所の視聴覚メディア 図解チェックリスト- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
***very rare. Dark-backed Aythya with pale gray, not white sides, and a faint pattern on the bill resembling Ring-necked Duck. The head was fairly tall and shallow on the backside, with an obvious high peak that sloped fairly straightly downward. The head was closer in size and shape as nearby Lesser Scaup than Greater Scaup. The head shape contrasted with RNDU x GRSC hybrids from this year and last year (e.g. https://macaulaylibrary.org/asset/616011602), which were large- and deep-headed. A subtle difference, but I think this is right.
テクニカル・インフォメーション
- モデル
- Canon EOS R5
- レンズ
- RF100-500mm F4.5-7.1 L IS USM + EXTENDER RF1.4x
- ISO
- 250
- 焦点距離
- 700 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/10.0
- シャッタースピード
- 1/1250 sec
- 大きさ
- 1688 pixels x 1125 pixels
- オリジナルのファイルサイズ
- 386.59 KB