kHz
作者
Jorge Leitão 该用户提供的媒体文件 档案
日期
地点
Königstuhl
Heidelberg (Stadtkreis), Baden-Württemberg, Germany
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媒体文件注释
This recording was made at the foot of the mountain next to the houses.
观察细节
It is distinguished mainly by the very dark plumage, with the very dark «infra-alar» covers, and by calling shrill. Although it is relatively easy to distinguish from swallows, the Common Swift can easily be confused with its pale-swift congener, which may also appear black in unfavorable light conditions, but this was not the case. This species is one of the last to leave.
技术信息
- 录音机
- 话筒
- 附件
- 原始文件大小
- 377.34 KB