ML283620351
作者
Mark Scheel 该用户提供的媒体文件 档案
日期
地点
Bolsa Chica Ecological Reserve
Orange, California, United States
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
Unusual location for this species. Even more unusual date; should be wintering far south of here by now. Very large dark swift with broad square tail, long wings, frequent soaring. Pale patch on belly, indicating juvenile. Photos show white around forehead. Nowhere near the white-throated swift flock seen later. Came in low, flying past us slightly above eye level at about 835am about halfway between the PCH parking and the outflow culvert. Just from the size and gliding flight we thought either Black Swift or something even more unusual (like Common Swift). We spent the next few minutes trying to keep it in sight and get photos, as it circled the area twice and then headed southwest past the PCH parking lot and out of view.
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF500mm f/4L IS II USM +1.4x III
- ISO
- 200
- 焦距
- 700 mm
- 闪光
- Flash did not fire
- 光圈
- f/5.6
- 快门速度
- 1/2000 sec
- 尺寸
- 601 pixels x 338 pixels
- 原始文件大小
- 83.95 KB