nominate Lesser Black-backed Gull (L. f. fuscus)
Amir Ben Dov (Israel)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)
Larus fuscus fuscus adult C0PE, 2009-2013, Ashdod. Pictures: Amir Ben Dov & Yoav Perlman.
Bird ringed in Finland, code like C0PA. White C0PE was ringed as 3+cy fuscus on 27 July 2001 at Hauho (61.1947, 24.6083) by ringer Jouko Astor.
below: fuscus 11+CY C0PE, December 08 2009, Ashdod. Picture: Yoav Perlman.
In 2009, it was at least in 11cy. Exact moult stage hard to interpret from this image, but probably only P10 old, and central primaries replaced up to P7. Secondary moult started as well.
below: C0PE, January 20 2010, Ashdod. Pictures: Amir Ben Dov.
P8 fully grown, P9 just a fraction shorter than P8 and P10 at about 3/4 of its final length. Complete moult almost finished. Note head streaking in this bird, which is at least 12 years old now.
below: C0PE, March 08 2011, Ashdod. Pictures: Amir Ben Dov.
Ready to migrate to breeding grounds as at least 13 years old bird now.
below: fuscus 15+CY C0PE, January 09 2013, Ashdod. Pictures: Amir Ben Dov.
P10 at about 4/5 of its final length; PMS = 49. Complete moult almost finished. Note delicate head streaking in this bird.