ML544465391
- 年齡
- 未確定
- 性別
- 未確定
- 回播
- 未確定
觀察細節
Distinctive silhouette and calls. 2 groups (~35 and ~18) merged while flying at high altitude and calling frequently. Flock circled briefly above lake before continuing onwards.
技術資訊
- 錄音機
- 麥克風
- 配件
- 原始檔案大小
- 2.12 MB