ML69288001
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
Minimum count by twos. Significant groups seen in flight numerous times; groups also seen perched along the stream frequently, including at least 10 near the reach 3/4 boundary, and at least 10 (probably more) ca 100-200 m above the diversion much later. Count based on groups seen flying upstream, somewhat high (many times shrub height) between 0814 and 0818. Groups counted of 30; 8; 8; 6; and 20. Groups of up to ca 30 seen in flight several other times during the count, but robins were moving in both directions and I did not attempt another count. Could be a substantial underestimate. Suspect they were feeding on Chokecherry fruits, but I did not confirm this positively. In the area NW of the diversion, I saw several robins on the ground, presumably foraging for something.
テクニカル・インフォメーション
- モデル
- COOLPIX P900
- ISO
- 100
- 焦点距離
- 285 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/6.3
- シャッタースピード
- 1/640 sec
- 大きさ
- 2693 pixels x 3104 pixels
- オリジナルのファイルサイズ
- 757.4 KB