Kolgans x Hawaigans?

Gestart door gjcaspers, januari 23, 2009, 20:21:29 PM

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gjcaspers

http://waarneming.nl/waarneming/view/41566772





These geese of Otto Kwak are obviously some kind of Anser x Branta hybrid, but which one?
The pale cheeks extend downward onto the foreneck, does that make the Branta parent a Hawaiian Goose?
And the Anser parent, in view of the company, and the white base of the bill, a Greater White-fronted Goose?
Groet,
Gert-Jan Caspers

Alcedo atthis

This pattern occurs in some hybrids with barnacle goose or with canada goose--

for example some (few!!) hybrids barnacle goose x lesser whitefront or barnacle goose x greater whitefront as well as canada goose x swan goose can show a pattern desembling a bit the hawaiian goose neck pattern.

these birds here i assume to behybrids barnacle goose x greater (or perhaps lesser whitefront)
greetings,
Jörn Lehmhus