作者
日期
地点
- 年龄和性别
- 幼鸟,性别未知 - X
观察细节
I picked this bird out as we were waiting for the Ivory Gull to hopefully return after it left early in the morning. This was a 1st-cycle bird, still basically in juvenile plumage which is pretty typical for Thayer's. The very uniform plumage got my attention first, with the head and body being the same shade of light grayish-brown, with a light smudge around the eyes. The bill was smallish and all-black. The upperwing had the obvious striped look to the outer primaries with the dark outer and pale inner webs visible as it flew around several times, with all silvery underwing with dark only as a very narrow strip of the trailing edge of the outer primaries. At rest the obvious chevrons on the brown primaries were visible. We had the bird in view for over an hour, always right around the yellow barrier, before we lost it. Accepted by GA Bird Records Committee Several flight shots are in the same gallery as the Ivory Gull: http://www.pbase.com/mctodd/ga_ivory_and_thayers_gull
技术信息
- 型号
- Canon EOS 50D
- ISO
- 400
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/2500 sec
- 尺寸
- 1200 pixels x 800 pixels
- 原始文件大小
- 262.69 KB