ML292205481
作者
Barbara Swanson 该用户提供的媒体文件
日期
地点
Borrego Springs--WTP Settling Ponds
San Diego, California, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
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观察细节
Small mixed flock of BESP and SABS around the west side of the pond. The determination of the Bell's Sparrow was made by considering the streakiness of the back and the darkness and thickness of the malars, and by comparison to birds that were present which are clearly SABS (see photos for that species). We think several birds are good candidates for BESP. The one on the wire (2 photos) has a few streaks on the outer back but none on the inner back, while the malar in the photo is black and grey. The second bird, in the 2 poor photos drinking at the pond, has very light streaks on the back (not dark like the SABS) and thick, black malars. The bird in the last photo also has very dark malars.
技术信息
- 尺寸
- 1997 pixels x 1333 pixels
- 原始文件大小
- 1.27 MB