ML104094631
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
視聴覚メディア・ノート
Great Skua high right with a Pom lower left and a Gt Shear middle. This was a large bird as can be seen although perspective may be difficult. Proportionately, to me at least, this is a Great Skua. South Polar would look lighter built with a smaller head and longer tail, also the wing flashes should have been less bold in South Polar although there is some digital flare due to the conditions. I decided to re-submit after spending some time working on a skuas following the Pubnico pelagic of 2017 and a second South Polar seen on that trip that raised ID questions. During the process I read more widely on the differences between Great and South Polar and viewed many images showing especially structure and dimensions of both.
観察結果の詳細
I should have submitted this as a Great at the time as that was what I always thought it was. Inside the reasonable viewing distance of c1km in poor conditions.
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
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 2000
- 焦点距離
- 400 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/9.0
- シャッタースピード
- 1/250 sec
- 大きさ
- 1744 pixels x 1047 pixels
- オリジナルのファイルサイズ
- 197.12 KB