ML22782121
投稿者
Jordan Gunn この投稿者による視聴覚メディア
日付
場所
Dutch Gap Conservation Area/Henricus Historical Park
Chesterfield, Virginia, 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
Saw two tan-rumped swallows flying in fenced off fields behind visitor center. They were in fenced area with pond, flying over fields, chattering. Responded to Cave Swallow recordings by flying toward speaker, flying in circles above me chattering. Tan rumps clearly seen through binoculars. Shape/proportions suggested cliff/cave. Quite worn feathers. Unfortunately the lighting was horrible and weather was a bit misty. I was able to snap a few photos to possibly review. Looking at records, Caves are more likely in winter than Cliffs though both obviously rare. Reviewing and messing with brightness/contrast on photos, I believe the light chin up through nape contrasting with what appears to be a dark face indicate Cave Swallow.
テクニカル・インフォメーション
- モデル
- Canon PowerShot SX50 HS
- ISO
- 800
- 焦点距離
- 67.9 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/5.6
- シャッタースピード
- 1/1250 sec
- 大きさ
- 1025 pixels x 781 pixels
- オリジナルのファイルサイズ
- 106.02 KB