ML631780188
Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinis
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
***very rare. Dark-backed Aythya with pale gray, not white sides, and a faint pattern on the bill resembling Ring-necked Duck. The head was fairly tall and shallow on the backside, with an obvious high peak that sloped fairly straightly downward. The head was closer in size and shape as nearby Lesser Scaup than Greater Scaup. The head shape contrasted with RNDU x GRSC hybrids from this year and last year (e.g. https://macaulaylibrary.org/asset/616011602), which were large- and deep-headed. A subtle difference, but I think this is right.
技術資訊
- 型號
- Canon EOS R5
- 鏡頭
- RF100-500mm F4.5-7.1 L IS USM + EXTENDER RF1.4x
- ISO
- 250
- 焦距
- 700 mm
- 閃光
- Flash did not fire
- 光圈值
- f/10.0
- 快門
- 1/1250 sec
- 次方
- 1688 pixels x 1125 pixels
- 原始檔案大小
- 386.59 KB