ML319012061
投稿者
Luke Seitz 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
Cerro de San Juan lower slopes
Tepic, Nayarit, Mexico
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
***MEGA; several seen well flying over at around km 2. At least four or five were close enough to be confidently identified as this species, but there were more distant birds over the ridge that may have also been White-fronted. First considered Black Swift, but smaller with more rapid wingbeats (not quite fluttery, and obviously unlike Vaux's, maybe best described as fast-snappy?), larger-headed, proportionally shorter and less sickle-shaped wings, and bluntly squared tail. Reminiscent of Spot-fronted Swift in flight style and shape. In photos, blazing white front and chin were obvious, and a white patch behind the eye.
テクニカル・インフォメーション
- モデル
- Canon EOS 90D
- レンズ
- EF500mm f/4L IS USM
- ISO
- 1000
- 焦点距離
- 500 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/5.6
- シャッタースピード
- 1/2500 sec
- 大きさ
- 1470 pixels x 1002 pixels
- オリジナルのファイルサイズ
- 645.69 KB