ML496839431
作者
Derek Stoner 该用户提供的媒体文件 档案
日期
地点
Blue Rock Rd. Boat Launch
Lancaster, 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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媒体文件注释
LAGU is the second bird from the right.
观察细节
Dark-mantled gull with partial black hood and black wingtips lacking white windows. Slightly smaller than surrounding Ring-billed Gulls, with which it was sitting quietly on the water. Thicker, more blade-tipped bill than the other dark-headed gulls (Franklin’s, Little, Black-headed) which might also occur here. Getting late in the season for this species to occur upriver here, with most post-breeding dispersers in upper Chesapeake Bay drainage recorded in July through September. Distant digiscope documentation photos. LAGU is second gull from the right.
技术信息
- 尺寸
- 3737 pixels x 2649 pixels
- 原始文件大小
- 1.13 MB