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2cy Baltic Gull L f fuscus
1-7: © Hannu Koskinnen, 21-06-2007. Hämeenlinna, Finland.
Compared to CK64, C84A is more fuscus-like in build and general looks. Moult-wise it is comparable though and indistinguisable from the more advanced intermedius. Again, without a ring it would probably go unnoticed in W Europe.
8-13: © Hannu Koskinnen, 28-04-2008 Nokia, Finland.
Interestingly, as a 3cy it looks also rather retarded. Potentially it could be mixed up with a very advanced 2cy fuscus as at rest it shows only shows second generation primaries in the left wing, plus a rather complete tail bar. The flight shots reveal P3-5 have been replaced with third generation feathers in the left wing and P2-6 in the right; the other primaries still are second generation. The brightly coloured bill and legs and the clean white head and underparts provide further clues to its age.
Compare to C10H, a very advanced fuscus.
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