kHz
ML256311341
作者
Robert Bochenek 该用户提供的媒体文件 档案
日期
地点
Robert H. Long Park
Oakland, Michigan, United States
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Three juvenile Cliff Swallows announcing parent bringing food
观察细节
. -Appears to be only one parent Cliff Swallow and three juveniles. -The time between feedings is 1.5 to 2.0 minutes. -Within the last five days, the entrance has been widen to accommodate the growing juveniles, plus ease the parent's feeding routine. -The parent(s) built a typical Cliff Swallow nest with a downward facing entrance. The interesting note is that it was built over the top of a previously used Barn Swallow nest, which has a top entrance. -Might be a first for breeding at R.H.Long Park.
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- 776.44 KB