ML646878402
作者
Vincent O'Brien 该用户提供的媒体文件 档案
日期
地点
Lake Travis--Bob Wentz Windy Point Pk
Travis, Texas, 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
Continuing bird. Seen far out to the southeast of the boat ramp near the large beige dry boat storage warehouse. Group of three loons observed together, two looked large, dark, blockheaded, and big billed. Third loon was smaller/compact and had a distinct round puffy cobra-like head and clean solid black/white neckline with a slender bill held at a horizontal. At one point there were three Common Loons and the Pacific together, but mostly just the two Commons. The Pacific showed a unique silvery pale gray crown and nape when highlighted by the sun which contrasted with the darker body. The Commons head and upperparts appeared mostly uniformed blackish. Observed with 20-60x80 scope for about an hour. Photo'd.
技术信息
- 型号
- OM-1
- 镜头
- OLYMPUS M.100-400mm F5.0-6.3
- ISO
- 800
- 焦距
- 400 mm
- 闪光
- Flash did not fire
- 光圈
- f/7.1
- 快门速度
- 1/1250 sec
- 尺寸
- 416 pixels x 312 pixels
- 原始文件大小
- 28.1 KB