ML617122487
投稿者
James Kennerley この投稿者による視聴覚メディア プロフィール
日付
場所
Race Rocks
Capital, British Columbia, Canada
この場所の視聴覚メディア 図解チェックリスト- 年齢と性別
- 成鳥オス - 1
観察結果の詳細
Superb views of one before we even got off the boat right by the jetty! I managed excellent photos of this bird which had attained 70% breeding plumage. I picked up a further two birds on South Race Rock so were a bit distant even through the scope. One bird was more advanced (90%) with a white face and dark ear covert patch, the other bird was less advanced and looking characteristically basic (30%). Smallish size and structure ruled out Dunlin-like ptilocnemis. Alternate/breeding plumage with darker rufous edges to scapulars and fairly well-defined ear covert patch points to expected subspecies tschuktschorum but I can't rule out couesi and especially quarta with certainty.
テクニカル・インフォメーション
- モデル
- Canon EOS R7
- レンズ
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 1250
- 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
- 1/1600 sec
- 大きさ
- 2638 pixels x 1649 pixels
- オリジナルのファイルサイズ
- 3.1 MB