ML181189161
- 年齡
- 未確定
- 性別
- 未確定
- 聲音
- 飛行叫聲
- 回播
- 未使用回播
影音備註
Chimney Swifts swirling around a roost chimney BEFORE they began to enter; recorded at 19:10 EDT. The sounds seem different than the sounds produced while they are entering the roost chimney (about five minutes later; listen to the other recordings).
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
- 錄音機
- Nikon CoolPix S7000, MOV to WAV using www.convertio.co
- 麥克風
- 配件
- 原始檔案大小
- 3.28 MB