ML187226341
作者
Chris Dean 该用户提供的媒体文件 档案
日期
地点
Salton Sea SRA--Headquarters and Campground
Riverside, 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
Large swallow flock flew-over visitor's center lagoon area. Small swallows with whitish underparts, dark uppersides, no forked tails like Barn Swallows, and rapid wingbeats. My sense in the field was Violet-green, but I couldn't confidently make out the degree of white on the sides of the rump and face. Photos helped to confirm ID. Flock of approx. 20 swallows. In the field, all the swallows seemed to be the same size with similar tail shape and color contrast. With Curtis' advice, I moved a portion of this flock into swallow sp. to be on the safe side.
技术信息
- 型号
- COOLPIX P900
- ISO
- 100
- 焦距
- 30.3 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/4.5
- 快门速度
- 1/400 sec
- 尺寸
- 1255 pixels x 941 pixels
- 原始文件大小
- 111.3 KB