Pure cachinnans or hybrid?

[Kent Olsen]

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?

Kent

[lou bertalan]

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.

best,

lou

[JanJ]

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

JanJ

[Theo Muusse]

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

Theo