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Auteur Topic: Kolgans x Hawaigans?  (gelezen 180 keer)

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gjcaspers

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Kolgans x Hawaigans?
« Gepost op: januari 23, 2009, 20:21:29 pm »

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?
Gelogd
Groet,
Gert-Jan Caspers

Alcedo atthis

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Kolgans x Hawaigans?
« Reactie #1 Gepost op: januari 24, 2009, 22:51:18 pm »

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)
Gelogd
greetings,
Jörn Lehmhus
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