Aythya americana x collaris
Status: Accidental in spring.
Taxonomy: Redhead is known to have hybridized with each of the other four North American Aythya in the wild, Canvasback, Lesser Scaup, Greater Scaup, and Ring-necked Duck (Woodin and Michot 2020).
Record: A drake was documented at Flanagan Lake, Douglas Co 4-6 Apr 2020 by Sam Manning (https://ebird.org/checklist/S66652933 and https://ebird.org/checklist/S66755115) .
Comments: There are about 40 instances of this hybrid combination shown in eBird.org (accessed Feb 2021) scattered across North America, although this Nebraska record is the only one for the Great Plains. Further examples and discussion may be found at Bird Hybrids: Redhead x Ring-necked Duck.
Woodin, M. C. and T. C. Michot (2020). Redhead (Aythya americana), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.redhea.01
Silcock, W.R., and J.G. Jorgensen. 2021. Redhead x Ring-necked Duck (hybrid) (Aythya americana x collaris). In Birds of Nebraska — Online. www.BirdsofNebraska.org
Updated 14 February 2021