作者
Michael Park 该用户提供的媒体文件
日期
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Woodmont Ave Summit
Alameda, California, United States
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UPDATE 12/07 -- Spectrogram confirms type 2 flight calls Detected a small flock, by flight calls as they passed from Woodmont area into Zaytuna College -- north to south along spine of ridge. I briefly saw them over Zaytuna College. Recording obtained. Impression in the field is that these were type 2 calls.
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- 2.16 MB