ML615002950
作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
观察细节
Seen well and close, in La Paz County only. First spotted by David Vander Pluym. Later it was seen following fish swarms (as indicated by flocks of gulls overhead) and diving often. David was able to get a series of photographs. Small loon comparable in size to Aechmophorus grebes, with dainty silver bill, culmen appeared to be uncurved or nearly so. Upperparts silvery, underparts white. When relaxed, showed white all along the water line, but only on the rear flanks while active. Upperparts also showed distinct white spangling, indicating adult, but the head pattern looked more like a first-winter bird. The line between dark and light on the neck and head was straight, not jagged or crooked at the chin, but was blurred rather than sharply contrasting. White touched the bottom of the eye. David's photos seem to show white before the eye but I didn't see that in the field. There was a distinct, isolated dusky patch on the center of the throat.
技术信息
- 型号
- Canon EOS 40D
- ISO
- 400
- 焦距
- 300 mm
- 闪光
- Flash did not fire
- 光圈
- f/7.1
- 快门速度
- 1/800 sec
- 尺寸
- 351 pixels x 286 pixels
- 原始文件大小
- 39.39 KB