作者
日期
地点
- 年龄和性别
- 未成年雌鸟 - X
观察细节
***mega; first record for Suffolk Co. and only the 6th for Massachusetts (followed closely by the 7th on Cape Cod); HY female by completely unmarked whitish throat; Identification as Black-chinned based on: 1) broad, club-shaped outer primary visible in stop-action photos and perched image; 2) face pattern, showing pale brownish lores with dark in front of the eye but no strong connecting dark line or wedge to the bill base; 3) proportionately long bill, probably outside the range of variation for Ruby-throated; 4) relatively dull greenish back, unlike the bright emerald green usually shown by Ruby-throated; 5) crow just dull and darkish with no hint of green (supportive, not diagnostic). A few typical Archilochus 'chup' notes were heard. Matt Garvey got video; SLR photos by MJI.
技术信息
- 型号
- Canon EOS 40D
- 镜头
- EF100-400mm f/4.5-5.6L IS USM
- ISO
- 1600
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/2500 sec
- 尺寸
- 3183 pixels x 1868 pixels
- 原始文件大小
- 316.84 KB