kHz
ML340694211
- 年齡
- 未確定
- 性別
- 未確定
- 聲音
- 叫聲
- 回播
- 未確定
觀察細節
At least 150 birds circling the chimney of the old Walley School. I was able to count that many as the birds entered the chimney for the evening, but it appears that other birds roosted elsewhere. The last swifts entered the chimney at 8:32 P.M., but at least two stragglers came near the chimney, and then went elsewhere. This is a known roost site for the species, and two audio recordings are attached.
技術資訊
- 錄音機
- Canon Power Shot S3 IS camera
- 麥克風
- 配件
- 原始檔案大小
- 10.02 MB