作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
观察细节
*RARE* uncertain status in Belize Within a mixed flocked of Vaux's and Lesser Swallow-tailed Swift I observed one odd swift. This bird was all dark, lacking any coloration around the collar. The flight style was a lot different than both Vaux's and Lesser Swallow-tailed Swift, also based on prior knowledge it was also unlike White-collared Swifts. Apart from flight pattern what also stood out was the relative size, being mixed in with both Vaux's Swift and Lesser Swallow-tailed Swift I could gather that this bird was not massive in comparison to them, it was larger but not as large as I'd expect White-collared Swift to appear. The wings were very long, and tapered to very narrow and pointed primaries. Notched tail. Photographed
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF400mm f/5.6L USM
- ISO
- 1250
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/4000 sec
- 尺寸
- 1104 pixels x 736 pixels
- 原始文件大小
- 291.16 KB