ML618792386
- 年齡
- 未確定
- 性別
- 未確定
- 回播
- 未確定
觀察細節
Estimate (based on count of birds in photos). Birds started gathering a little before 8:30 when more and more joined the flock calling to one another. They flew around and around gradually getting more compact then shot down the chimney in the space of about 20 seconds at 9:00pm.
技術資訊
- 錄音機
- 麥克風
- 配件
- 原始檔案大小
- 1.4 MB