ML615377258
作者
Matt Hafner 该用户提供的媒体文件 档案
日期
地点
Putnam house (private)
Harford, Maryland, United States
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观察细节
Heard and saw 2 flocks, both counted with the thermal. The large group was first and the small group came by a few minutes later. Identified by calls. In the video with the large flock, I could hear the Swans passing at a different time and space from the Canadas.
技术信息
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- 原始文件大小
- 11.87 MB