nominate Lesser Black-backed Gull (L. f. fuscus)
Amir Ben Dov (Israel)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)
(4 images) Larus fuscus fuscus adult J20E October 2009, January & March 2010, Ashdod, Israel. Pictures Amir Ben Dov.
J20E was ringed in northern Norway, as an adult (4+cy, sex unknown) at the nest. The colony only holds dark mantled birds (nominate fuscus). It was ringed on June 22 2007 at Lislandholmen, Nordhorsvær, Sømna, Nordland, Norway (65°19'24"N 011°36'33"E).
More information about migration strategies in Norwegian fuscus and the ringing programme in the three northern counties of Norway: Nordland, Troms and Finnmark, can be found here: The summary for juveniles can be found in the fuscus 1cy October section, the summary for adults can be found in the fuscus adult October section.
above: J20E October 31 2009, Ashdod, Israel. Pictures Amir Ben Dov.
P1-P4 fully grown, P5 growing, P6 missing, P7-P10 old. Secondaries and rectrices old. Adult fuscus wihich is active primary moult in the inner primaries, as is typical for nominate fuscus in October. Ill-defined head streaking in the hind neck and a small black smudge on the bill. Red gonydeal spot doesn't exceed on the upper mandible. Upperpart colour rather pale grey, obvious paler than black sub-terminal bands on the new inner primaries. Wing covert moult in progress, simultaneous with primary moult, most obvious in missing central greater coverts and fresh inner median coverts.
below: J20E January 02 2010, Ashdod, Israel. Picture Amir Ben Dov.
Difficult to say anything substantial, except that P10 is still old.
below: J20E March 26 2010, Ashdod, Israel. Picture Amir Ben Dov.
Interesting individual. By March, all primaries are new now (P7 most probably folded under P8, sugesting a moult gap in the outer primaries which is hard to believe when you see the pictures above and know the moult strategy in this bird).