- 年齡
- 未確定
- 性別
- 未確定
觀察細節
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.
技術資訊
- 型號
- Canon EOS REBEL T2i
- ISO
- 400
- 焦距
- 400 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/9.0
- 快門
- 1/2000 sec
- 次方
- 1051 pixels x 717 pixels
- 原始檔案大小
- 85.05 KB