- 年龄
- 未说明
- 性别
- 未说明
媒体文件注释
heuglini on left, with adult barabensis on right
观察细节
This bird had been seen and photographed by others prior to our visit. I have seen many heuglini and barabensis side-by-side in Bahrain in mid-March 1999, and this individual looked as I would expect a barabensis to look c. two-weeks earlier - i.e. merest traces of any winter markings, on the lower hindneck, and with breeding-state bare parts, including black and red gonydal spots. There was no adult heuglini to compare it with, but I'd judge that - taking into account the differing angles of view/sunlight - the barabensis was very slightly paler than the two 3rd-cycle heuglinis seen next to it. The degree of black in the primaries was extensive, but I cannot quantify this.
技术信息
- 型号
- Canon EOS REBEL T2i
- ISO
- 400
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/8.0
- 快门速度
- 1/3200 sec
- 尺寸
- 1181 pixels x 713 pixels
- 原始文件大小
- 97.81 KB