[Swan x Graylag Goose (domestic type)] x Canada Goose (hybrid)

[Swan x Graylag Goose (domestic type)] x Canada Goose (hybrid)

(Anser cygnoides x anser) x Branta canadensis

Status: Rare casual resident

Records: There are three records; two of which from Hall Co that, based on photographs, may be of the same individual despite the seven-year gap between them.

3 Feb 2013, Pier Park, Grand Island, Hall Co (Pujari, https://ebird.org/checklist/S12837188)

16 Feb 2020, Grand Island, Hall Co (Flohr, https://ebird.org/checklist/S64632028)

25 Aug 2015, three hybrids likely a brood near Whitney, Dawes Co (Lefever, Lamoreaux; https://ebird.org/checklist/S24759735)

Comments: From Bird Hybrids: Swan Goose x Canada Goose: “Many domestic geese contain a mix of Swan Goose and Greylag Goose genes and when such mixed-species domestic geese hybridise with Canada Geese the offspring may resemble either Swan Goose x Canada Goose hybrids or Greylag Goose x Canada Goose hybrids – sometimes both in a single brood.”

Domestic Swan Geese, often referred to as Chinese Goose, have a knob at the base of the upper mandible that is lacking in wild birds. Chinese Geese are common in captivity and as ferals in park-like settings.

Acknowledgements:

Photograph (top) of a (Swan x Graylag Goose) x Canada Goose (hybrid) at Pier Park, Hall Co 3 Feb 2013 by Bhalchandra Pujari.

Recommended Citation

Silcock, W.R., and J.G. Jorgensen.  2021.  (Swan x Graylag Goose) x Canada Goose (hybrid) (Anser cygnoides x Branta canadensis). In Birds of Nebraska — Online. www.BirdsofNebraska.org

Updated 24 Feb 2021