ML474195611
投稿者
Jon G. 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
PAJA Stakeout, Churchs Ferry, North Dakota, US (48.311, -99.201)
Benson, North Dakota, 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
Still present. We were waiting at the pinned location for about an hour before a number of gulls and a few terns came from the ag field to land in the water. About 5 minutes later, a commotion arose among the flock and we could see that the PAJA had targeted one RBGU to chase. The PAJA successfully forced the gull to yield its food, then the PAJA went back to the ag field briefly. It did another pass over us within several minutes, but did not successfully harass a gull that time. It then went to the far edge of the field. After about 30 more minutes, we saw a group of gulls rising about 1/2 mile off to the west, but we were unable to determine if the PAJA caused that activity.
テクニカル・インフォメーション
- モデル
- Canon PowerShot SX70 HS
- レンズ
- 3.8-247mm
- ISO
- 200
- 焦点距離
- 54.3 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/8.0
- シャッタースピード
- 1/500 sec
- 大きさ
- 667 pixels x 497 pixels
- オリジナルのファイルサイズ
- 71.17 KB