ML21523451
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
This bird was first spotted at 1215. It was on its own. Because of the bill shape, dark hood and white eye arks, I put it down to one of the Leucophaeus species. Closer inspection persuaded me it was a 1st cycle Franklin's gull because of the relatively short beak and well defined hood and eye arcs. I spent some more time looking around the lake and when I came back to the Franklin's, it had been joined by two Bonaparte's gulls. The Franklins was only marginally larger than the Bonaparte's gulls, another point to favor of a Franklin's. All three gulls flew off to the south around 1330 Franklin's gull is shown below with the two Bonaparte's gulls. I can provide larger files of tis bird if requested, but the distance and lighting prevented anything other than record ID shots
テクニカル・インフォメーション
- モデル
- Canon EOS 60D
- レンズ
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 400
- 焦点距離
- 400 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/8.0
- シャッタースピード
- 1/640 sec
- 大きさ
- 1200 pixels x 762 pixels
- オリジナルのファイルサイズ
- 505.89 KB