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Soortgroepen => Wat is dit voor vogel? / Determinatie => Vogels => Hybriden => Topic gestart door: Alcedo atthis op januari 23, 2008, 13:19:33 PM

Titel: Odd Aythya duck
Bericht door: Alcedo atthis op januari 23, 2008, 13:19:33 PM
http://www.ornitho.ch/index.php?m_id=54&mid=31964 (http://www.ornitho.ch/index.php?m_id=54&mid=31964)

I am not sure-What do you think this is? Photographed in Switzerland (not by me, just found the pictures).
Titel: Odd Aythya duck
Bericht door: gjcaspers op januari 23, 2008, 14:07:14 PM
(Common Pochard x Ferruginous Duck) x Common Pochard?
Or Common Pochard x Redhead (because of bill and iris colour)?
Titel: Odd Aythya duck
Bericht door: Alcedo atthis op januari 26, 2008, 21:36:40 PM
It is considered to be a Common Pochard x Tufted duck 2nd generation hybrid in that link;

I thought it could be a backcross (Common Pochard x Tufted duck) x Common Pochard ; or the possibility of redhead x pochard (Thinking along the same lines as you, Gert-Jan....)

But how to differentiate between these possibilities???