Hybrids fuscus x argentatus

Ruud Altenburg
Posts: 248
Joined: Sun Sep 27, 2009 1:58 pm

Hybrids fuscus x argentatus

Post by Ruud Altenburg » Sun Sep 27, 2009 8:30 pm

This week I observed no less than three (probable) adult hybrids Herring x LBBG:

http://vwgmidden-kennemerland.waarnemin ... w/44697835
http://vwgmidden-kennemerland.waarnemin ... w/44757852

I wonder how and where two commonly occurring species in NW Europe can hybridize? A mixed pair has been found on Texel in 2006 (are any pictures available?) but has hybridisation also been observed elsewhere?
Last edited by Ruud Altenburg on Mon Sep 28, 2009 7:37 pm, edited 3 times in total.

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marsmuusse
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Re: Hybrides fuscus x argentatus

Post by marsmuusse » Sun Sep 27, 2009 8:32 pm

Ruud,
see this topic:

viewtopic.php?f=7&t=14


Mars

Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Tue Oct 06, 2009 8:47 pm

Maybe easier to upload some pictures here. Bird 1, Heemskerk 21-09-09.
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Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Tue Oct 06, 2009 8:48 pm

Bird 2, Heemskerk 21-09-09.
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Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Tue Oct 06, 2009 8:52 pm

Bird 3. Uitgeestermeer 27-09-09.
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Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Tue Oct 06, 2009 8:53 pm

Bird 4, Heemskerk 05-10-09.
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Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Tue Oct 06, 2009 8:54 pm

Bird 5, Heemskerk 05-10-09.
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Rob Hoeben
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Re: Hybrids fuscus x argentatus

Post by Rob Hoeben » Tue Oct 13, 2009 9:09 pm

Beste Ruud,
Ik heb je foto's met veel interesse bekeken.
Deze dieren lijken sterk op 'mijn' IJmuiden vogels.
Erg leuk!
Rob
Rob Hoeben, Leiden, The Netherlands

Derek Charles
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Re: Hybrids fuscus x argentatus

Post by Derek Charles » Wed Oct 14, 2009 8:09 am

Hello everyone.
Here are two suspected lbbg x herring hybrids from Ireland. The first is a bird which returns to Killybegs every winter and is seen well into spring. In winter it is sometimes reported by visitors as a possible Atlantis YLG and in spring as a YLG. I suspect that it is this bird that is reported to breed in summer in a nearby County in a colony of LBBG's again as a YLG.

The second is a bird only seen briefly at Killybegs and not in flight. The bright yellow leg colour is very interesting on a suspected hybrid?

Derek
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Ruud Altenburg
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Re: Hybrids fuscus x argentatus

Post by Ruud Altenburg » Wed Oct 14, 2009 8:34 am

Hallo Derek,

so argentatus x fuscus is not a common hybrid in Ireland? I really do wonder where these birds are from. In Holland they seem to be rather rare, except around Sep-Oct.

Cheers

Ruud

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