ML113906621
作者
John Cassady 该用户提供的媒体文件
日期
地点
Miller Beach, Lake Street
Lake, Indiana, United States
该地点产生的媒体文件 配图名录- 年龄和性别
- 幼鸟,性别未知 - X
观察细节
The following marks for juvenile Long-tailed Jaeger are visible in the photos: 1. Gray tones. 2. Two-toned upper wings. 3. Two pale primary shafts on P10 and P9 4. Structure - weight forward, with more breast than belly, very little head projection, and an extended "back end." 5. Stubby bill. 6. and perhaps most convincing, the scaly looking mantle and upper wing coverts as the result of bars of pale-edged feathers (a feature not normally shown by young PAJAs).
技术信息
- 尺寸
- 350 pixels x 287 pixels
- 原始文件大小
- 37.87 KB