ML280391341
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
A very impressive congregation, especially considering this late date. We first noted 27 in a flock that was working downriver shortly after sunrise, which circled back upriver (and may have landed on the sandbar). We later found a large flock loafing on the sandbar in the middle of the river, which we confirmed to be FRGU by zooming in on photos. DFL estimated ~95 when the flock was perched in tight formation, but in two in-flight images, CLR counted 117 and 124 FRGUs ! This tally may be second only to Van's flight of 645 from nearby along the Mississippi River in Oct 2012: https://ebird.org/checklist/S11830903
技術資訊
- 型號
- COOLPIX P900
- ISO
- 280
- 焦距
- 357 mm
- 閃光
- Flash did not fire
- 光圈值
- f/6.5
- 快門
- 1/500 sec
- 次方
- 3707 pixels x 1660 pixels
- 原始檔案大小
- 1.07 MB