- 年齡
- 未確定
- 性別
- 未確定
- 回播
- 未確定
觀察細節
Flyover group of about 12 birds, heard very well in the field but only this very poor brief audio recorded. Calls piercing, descending, loud. One simple, single note, harmonics converging towards end as note drops in pitch.
技術資訊
- 錄音機
- 麥克風
- 配件
- 原始檔案大小
- 387.64 KB