ML306822301
- 年齡
- 未確定
- 性別
- 未確定
- 回播
- 未確定
觀察細節
This is a gross estimate. Many birds flew away to the south (toward the river) while it was still dark. Tough to count by wing whistling! Several hundred remained on the water when there was light.
技術資訊
- 錄音機
- 麥克風
- 配件
- 原始檔案大小
- 8.95 MB