ML180342681
作者
Kent Forward 该用户提供的媒体文件 档案
日期
地点
Rancho Corral de Tierra--El Granada Area (lower), Clipper Ridge/French trails system
San Mateo, California, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
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观察细节
In the field I felt pretty good these were a flock of Vaux's Swfits passing through, I was able to get photos! Upon looking at the photos I wondered if they might be Northern Rough-winged Swallows, but there is no sign of a slightly notched tail, the throat is slightly lighter colored than the breast (the opposite would be true of Northern Rough-winged), and the wings do seem more narrow and pointy, especially in the second photo which is what I recalled from the field (the long narrow boomerang look). After this examination, I felt better again about Vaux's Swfits.
技术信息
- 型号
- Canon EOS 7D
- 镜头
- EF100-400mm f/4.5-5.6L IS USM
- ISO
- 1000
- 焦距
- 260 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/7.1
- 快门速度
- 1/1250 sec
- 尺寸
- 536 pixels x 357 pixels
- 原始文件大小
- 47.33 KB