kHz
ML614076390
- 年齡
- 未確定
- 性別
- 未確定
- 回播
- 未確定
觀察細節
Heard only except for brief, distant overhead views that could not be used to ID the birds. It sounded like 20-ish birds were flying in loops overhead as if they were moving between roosts but only 5 were actually seen. Occasionally a single, more distinct bird would call using the slow chip, chip, chip voice, rather than the rapid fire trills.
技術資訊
- 錄音機
- 麥克風
- 配件
- 原始檔案大小
- 1.39 MB