ML610298828
投稿者
Mark Robbins 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
Perry Lake--Dam
Jefferson, Kansas, 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
Estimated by 500s in flocks in relatively close groups, = ca 18,000, the far flock on water appeared even larger, so used a conservative 20,000 for that group. Finally to the NE there were several thousand in the air swirling above the water- estimated 5,000 for that. I consider this a conservative estimate of that group. Just under a thousand were leaving when I arrived. About 800 perched on roof top of boat storage area. Suspect if a more accurate estimate were made it might be over 50,000 were present.
テクニカル・インフォメーション
- モデル
- DSC-RX10M4
- ISO
- 250
- 焦点距離
- 105.8 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/4.0
- シャッタースピード
- 1/1000 sec
- 大きさ
- 5472 pixels x 2242 pixels
- オリジナルのファイルサイズ
- 3.33 MB