ML98412241
Sterna sp. Sterna sp.
作者
Kristin Purdy 该用户提供的媒体文件
日期
地点
Ogden Bay WMA--North Parking Lot (7500 W)
Weber, Utah, United States
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
媒体文件注释
Sterna sp. on the right; Two FOTE left. Gray breast; smaller than Forster's.
观察细节
This bird doesn't add up either to Forster's or to Common (or, ha-ha, Arctic) A tch smaller than the Forster's Terns, gray breast and belly contrasting with white throat. Slightly darker gray mantle than Forster's. Wingtips just barely as long as tail; perhaps a smidge shorter. Underside of primaries appeared dark in the last photo; I don't think this was just a shadow as I can also see the pale primary shaft. While all of those plumage characteristics fit COTE, the color (orange) and size (matching Forster's rather than Common) are a better fit for Forster's.
技术信息
- 型号
- VS501
- ISO
- 50
- 焦距
- 3.7 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/2.2
- 快门速度
- 1/2039 sec
- 尺寸
- 640 pixels x 391 pixels
- 原始文件大小
- 109.89 KB