kHz
ML615279357
作者
Jason St. Pierre 该用户提供的媒体文件 档案
日期
地点
Palo Verde Ecological Reserve
Riverside, California, United States
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观察细节
At least 40 flying south over the parking area, maybe a few more. Was trying to count them, record them, and check for Ross’s at the same time. Minimal size variation of individuals in flock and vocalizations seemed lower pitched than Ross’s. Will upload audio later.
技术信息
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- 226.93 KB