作者
Lance Benner 该用户提供的媒体文件 档案
日期
地点
Indian Spring Farm, West Mt. Vernon, ME
Kennebec, Maine, United States
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
- 行为
- 飞行
- 发声
- 飞行鸣叫
- 回放
- 未使用回放
媒体文件注释
Recorded with an autonomous recording unit strapped to a tree. I was outside at the time but about 100 meters from the recorder, which was closer to the birds than I was.
观察细节
Identified by emphatic flight calls. Heard and recorded. Birds not seen. The calls are typical of type 2s: slightly more than 0.05 seconds in duration, rapidly downward-sweeping in frequency with a distinct "kink" about 1/2 between the maximum and minimum frequency. Very common type 2 call seen and heard often in California. I was able to record only 3 calls but heard more before I got the recorder turned on. The birds appeared to land near the top of eastern white pines, which are loaded with cones.
技术信息
- 录音机
- Wildlife Acoustics Song Meter Mini
- 话筒
- 附件
- 原始文件大小
- 1.53 MB