Pure cachinnans or hybrid?

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

Pure cachinnans or hybrid?

Post by Kent Olsen » Thu Feb 07, 2013 11:15 am

Found this the other day in Denmark: http://gulldk.blogspot.dk/2013/02/caspi ... s-3cy.html

It is my firste second winter individual missing white mirror on p10

What do you think of it?


lou bertalan
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Joined: Tue Nov 03, 2009 2:43 pm
Location: stuttgart, SW germany

Re: Pure cachinnans or hybrid?

Post by lou bertalan » Thu Feb 07, 2013 1:15 pm

plumage- and structurewise a good male 2nd cycle caspian. if there is argentatus in it, little shows up in this bird. hints of it could be (apart from the lacking p10 mirror, which a minority of caspians don't have): stronger than normal head striation and very short ventral p10 tongues for a 2nd cycle.



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Re: Pure cachinnans or hybrid?

Post by JanJ » Sun Feb 10, 2013 4:55 pm

I would agree with Lou. However, that head shape with it´s pattern, fierce look and size of it could belong to a Herring.


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Theo Muusse
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Location: Dordrecht

Re: Pure cachinnans or hybrid?

Post by Theo Muusse » Sun Feb 10, 2013 8:04 pm

Also, the rump is not pure white and the inner primaries are patterned more than I would like for a pure bird.


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