ML319012061
作者
Luke Seitz 该用户提供的媒体文件 档案
日期
地点
Cerro de San Juan lower slopes
Tepic, Nayarit, Mexico
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
观察细节
***MEGA; several seen well flying over at around km 2. At least four or five were close enough to be confidently identified as this species, but there were more distant birds over the ridge that may have also been White-fronted. First considered Black Swift, but smaller with more rapid wingbeats (not quite fluttery, and obviously unlike Vaux's, maybe best described as fast-snappy?), larger-headed, proportionally shorter and less sickle-shaped wings, and bluntly squared tail. Reminiscent of Spot-fronted Swift in flight style and shape. In photos, blazing white front and chin were obvious, and a white patch behind the eye.
技术信息
- 型号
- Canon EOS 90D
- 镜头
- EF500mm f/4L IS USM
- ISO
- 1000
- 焦距
- 500 mm
- 闪光
- Flash did not fire
- 光圈
- f/5.6
- 快门速度
- 1/2500 sec
- 尺寸
- 1470 pixels x 1002 pixels
- 原始文件大小
- 645.69 KB