Larus glaucoides x thayeri (aka Kumlien's Gull)
Third winter
3 December 2007
Bergen, Hordaland, Norway

Description:
• Size like the smaller Herring Gulls (females) nearby.
• A rather heavy bird, with a powerful bill and angular head.
• Dark brownish smudging on breast and sides and back of neck. Also some dark spots on the belly.
• Fine brownish tinge on greater and median coverts (possibly also on lesser coverts).
• Undertail covers were barred brown.
• The tail was darker (greyish brown) than the rump.
• The bill was washed out yellow with a tinge of blue, distinctly contrasting to a blak tip, with a bright spot at the end.
• Greyish brown primaries with white tips.
• The outer primaries were darker than the inner ones.
• Both inner and outer webs of the primaries were colored.

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Posted 03.12.2007