ML113509061
作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
观察细节
Dark morph juvenile first found earlier this morning by Aaron Batterbee. Medium sized all-dark jaeger with light cinnamon barring on underparts and neck. Seen fairly well although briefly at very close range while it was harassing gulls. Long-tailed Jaeger eliminated by the 5+ white primary shafts on the wing upperside, as opposed to only two in Long-tailed (fide Kaufman, 1990), as well as a bulkier appearance than expected for that species. Pomarine was more difficult to eliminate definitively, but the thin bill with little hint of a gonydeal angle, fairly small head, slightly paler nape, as well as the smaller size and seeming more slender and agile than expected for Pomarine and certainly from what I remember from a previous sighting of that species. Unfortunately was not able get a great look at the central tail feathers, so was unable to use that as an identification aid. Photos by Andrew Miller
技术信息
- 型号
- FinePix HS50EXR
- ISO
- 100
- 焦距
- 185 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/640 sec
- 尺寸
- 2304 pixels x 1728 pixels
- 原始文件大小
- 498.45 KB