ML620091685
投稿者
Esther Sumner この投稿者による視聴覚メディア
日付
場所
Bridal Veil Falls Overlook
Utah, Utah, 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
Continuing from McKay's FOY Utah County Black Swift sighting yesterday! First bird today spotted/arrived around 7:30 p.m. by KC. (who helped everyone there verify they were indeed looking at black swifts. Thanks KC!) Facing Bridal Veil Falls, most of the white-throated swifts were clustered above the falls and to the right of the falls, whereas the black swifts were mostly to their left. The black swifts were flying in and out of where the mountain was lit by sun so we were able compare and see that their bellies stayed black in the light, and that it wasn't a lighting/shadow effect. They felt a tad bigger and blockier than the white-throated swifts, due to their shorter tails. (Poor) photos.
テクニカル・インフォメーション
- モデル
- NIKON D850
- レンズ
- 500.0 mm f/5.6
- ISO
- 2500
- 焦点距離
- 700 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/14.0
- シャッタースピード
- 1/800 sec
- 大きさ
- 2048 pixels x 1365 pixels
- オリジナルのファイルサイズ
- 1.81 MB