HG with extreme bare part colours

Post Reply
Kent Olsen
Posts: 46
Joined: Wed Dec 02, 2009 11:07 pm

HG with extreme bare part colours

Post by Kent Olsen » Thu Dec 08, 2011 8:26 pm

Several such extreme individuals are seen at the moment in Denmark and at least in southern Sweden. They appear to more frequent right now than ever before.

http://gulldk.blogspot.com/2011/12/herr ... -with.html

Does any have references for the explanation for such extreme colours to occur even across several age classes? Have they all been eating food high in organic pigment such as Carotenoids???

Cheers

Kent

User avatar
marsmuusse
Posts: 666
Joined: Sun Sep 27, 2009 12:43 pm

Re: HG with extreme bare part colours

Post by marsmuusse » Fri Dec 09, 2011 11:38 am

"Have they all been eating the same food with high concentration of Carotenoids? "

I guess so yes. Do you have a shrimp factory in the neighbourhood?

Ronald Klein
Posts: 88
Joined: Mon Nov 30, 2009 5:20 pm

Re: HG with extreme bare part colours

Post by Ronald Klein » Sun Dec 11, 2011 9:10 pm

It seems to be not a local phenomena in Aarhus. In Baltic Germany (Schleswig-Holstein near Danish border) the same too.
http://f3.webmart.de/f.cfm?id=1231426&t ... threadview

Lars krogh
Posts: 41
Joined: Mon Nov 02, 2009 8:14 pm

Re: HG with extreme bare part colours

Post by Lars krogh » Sun Dec 11, 2011 10:15 pm

Rødvig Havn 8.12.2011 Denmark
Attachments
_DSC7212aa.jpg
_DSC7212aa.jpg (194.87 KiB) Viewed 7159 times

Ronald Klein
Posts: 88
Joined: Mon Nov 30, 2009 5:20 pm

Re: HG with extreme bare part colours

Post by Ronald Klein » Sun Dec 11, 2011 11:35 pm

Was there any local mess (accident) in Denmark? I am afraid it.

Kent Olsen
Posts: 46
Joined: Wed Dec 02, 2009 11:07 pm

Re: HG with extreme bare part colours

Post by Kent Olsen » Wed Jan 04, 2012 12:35 pm

Thank for your comments and links to similar extreme coloured argentatus which by now have been reported from all around Denmark and least southern and eastern Sweden, northern Poland, Baltic Germany, however, individuals now are reported along their south-western migration route into Western Europe including the Netherlands.

It seems as if these gulls are found most abundant along the coastline of the Baltic Sea and the areas where it drains into such as Kattegat by the way of Øresund, the Great Belt and the Little Belt. Thus the source of origin should most likely be within the eastern part of this area.

Armin
Posts: 25
Joined: Tue Jan 31, 2012 6:51 pm
Location: Germany

Re: HG with extreme bare part colours

Post by Armin » Tue Jan 31, 2012 8:07 pm

On the 29th January I found a extreme coloured Herring Gull in Steinhude, Lower Saxony (Germany).
Attachments
Karotinmöwe.jpg
Karotinmöwe.jpg (544.56 KiB) Viewed 6978 times

Post Reply