ML181188081
- 年齡
- 未確定
- 性別
- 未確定
- 行為
- 飛行中
影音備註
Chimney Swifts entering chimney at 19:13 EDT. Taken from same MOV file that produced the WAV sound file (also labeled as 19:13).
觀察細節
Started out about 500 but kept increasing until time of entry into N&O chimney (directly west of our location). Estimate, increased rapidly between 6:50 and 7:05 pm EDT. A few entered chimney early but main flow began at 19:10 through 19:20 with heaviest infow at 19:15. One estimate based on 5 birds a second for 10 minutes.
技術資訊
- 次方
- 1259 pixels x 769 pixels
- 原始檔案大小
- 128.88 KB