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日期

eBird记录 S269750791

地点

Thom Field Chimney, Wausau US-WI
Marathon, Wisconsin, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 44.969687, -89.615148
年龄
未说明
性别
未说明

观察细节

This is just an estimate. When I got to this spot swifts were already entering the chimney. During the Swift Night Out the night before 329 were counted. Note: one swift tried to enter at the end and either it was rejected or there was no vacancy. It flew to the southwest hopefully finding another chimney. Started taking video towards the end.

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原始文件大小
52.19 MB