odd tertial and GC pattern

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Picture ID: 865
Upload: 18.03.2011
Photo date: 25 August 2010
Location: dambovita canal, bucharest
Photographer © cristian mihai
Gallery: michahellis 1cy
Species: larus michahellis

GC: pattern contrasting dark and white but irregular, not the clear geometric forms usually found in mich inner GC, thus resembling a bit cachinnans.
TT: the unusual, very wide "thumbnail" distal end results from merging of white actual crescent (narrow) with (in this case) whitish outer quarter of TT; occsionally, this subterminal zone is a bit paler than basal half, see e.g. here:
but rarely as white as in this ind.
slightly advanced in postjuvenile moult with many coverts shed and most scaps replaced. note pattern on lower scaps!

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