作者
Shane Patterson 该用户提供的媒体文件 档案
日期
地点
Saylorville Reservoir--Jester Park, Discovery Pond
Polk, Iowa, United States
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媒体文件注释
Note abundance of calls from Type 2 (Ponderosa Pine) and Type 4 (Douglas Fir).
观察细节
Note: Tim Spahr of Cornell Lab emailed to confirm Douglas-fir / Type 4 calls in the attached recording. Hence my checklist edit. Continuing AB find. Note abundance of calls from two types in attached recording. Type 2 (11 individuals counted) and Type 4 (6 individuals counted). The Type 4 were in a single, monotype flock, whereas the Type 2 were more spread out as singles, duos, and a trio.
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- 9.1 MB