ML52511451
作者
Bobby Brown 该用户提供的媒体文件 档案
日期
地点
Williamsport Dam
Lycoming, Pennsylvania, 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
Flew in with about 20 RBGU and 2 HERG near dusk, joining the group of a couple hundred gulls (RBGU and BOGU) already present. Very dark back and light head led me to pay particular attention to the bird. Bill was predominantly black. Size intermediate between RBGU and HERG, which were both present to compare. The bird took flight on a couple occasions, where the mostly white tail base with black tail band were noted. The underside of the body seemed fairly light in contrast to the dark back.
技术信息
- 尺寸
- 2557 pixels x 1798 pixels
- 原始文件大小
- 715.77 KB