kHz
ML93810571
作者
Alexander Lees 该用户提供的媒体文件 档案
日期
地点
Brosscroft property
Derbyshire, England, United Kingdom
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
- 发声
- 飞行鸣叫; 非声音
- 回放
- 未使用回放
观察细节
Phenomenal movement, perhaps unprecedented in the UK (?), birds were moving constantly while we were out between 2220 and 2310 and sporadically on the tape afterwards. Presumably birds leaving the Irish Sea and heading across the Peak District towards the North Sea. The wing whirrs were often more prominent that the calls suggesting many groups weren't vocalising. Oliver Metcalf and I are hatching a plan to try and derive some sort of estimate of numbers but thousands doesn't seem implausible given the numbers wintering off North Wales.
技术信息
- 录音机
- Frontier Labs Bioacoustic Audio Recorder (BAR)
- 话筒
- 附件
- 原始文件大小
- 8.98 MB