nominate Lesser Black-backed Gull (L. f. fuscus)

(last update: 25-1-2010)

Amir Ben Dov (Israel)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)

fuscus rings

fuscus 1cy July
fuscus 1cy Aug
fuscus 1cy Sept
fuscus 1cy Oct
fuscus 1cy Nov
fuscus 1cy Dec

fuscus 2cy Jan
fuscus 2cy Feb
fuscus 2cy March
fuscus 2cy April
fuscus 2cy May
fuscus 2cy June
fuscus 2cy July
fuscus 2cy Aug
fuscus 2cy Sept
fuscus 2cy Oct
fuscus 2cy Nov

fuscus 2cy Dec

fuscus 3cy Jan
fuscus 3cy Feb
fuscus 3cy March
fuscus 3cy April
fuscus 3cy May
fuscus 3cy June
fuscus 3cy July
fuscus 3cy August

fuscus 3cy Sept

fuscus 3cy October
fuscus 3cy Nov
fuscus 3cy Dec

fuscus 4cy Jan
fuscus 4cy Feb
fuscus 4cy March
fuscus 4cy April
fuscus 4cy May
fuscus 4cy June
fuscus 4cy July
fuscus 4cy Aug
fuscus 4cy Sept

fuscus 4cy Oct
fuscus 4cy Nov
fuscus 4cy Dec

fuscus ad Jan
fuscus ad Feb
fuscus ad March
fuscus ad April
fuscus ad May
fuscus ad June
fuscus ad July
fuscus ad Aug
fuscus unringed Aug
fuscus ad Sept
fuscus ad Oct
fuscus ad Nov
fuscus ad Dec

Larus fuscus fuscus 4CY & 9CY C27N October - December 2009 & March 2014, Ashdod, Israel. Images Amir Ben Dov & Yoav Perlman.

Ringed as pullus on July 01 2006 at Pori, Finland (61.6548, 21.3754) by ringer Matti Sillanpää.

below: C27N 9CY, March 08 2014, Ashdod, Israel. Images: Amir Ben Dov.

Crisp adult, with some black on bill in 9CY.

below: C27N December 08-11 2009, Ashdod, Israel. Images Amir Ben Dov & Yoav Perlman.

Note the extensive black bill-band as 4cy bird.
C27N by mid December: P7 fully grown, P10 still old. Probably, P7 has to grow just a little bit to reach its full length, P8 is at the length of P5.

below: C27N November 06 2009, Ashdod, Israel. Image: Amir Ben Dov.

Now by early November. Complete moult started, with inner primaries renewed and outer three primaries still old. Difficult to determine if central tail feathers are missing.

below: C27N October 30 2009, Ashdod, Israel. Images: Amir Ben Dov.

A dark grey looking adult, photographed in rainy conditions. Slender bird with pointed long wings when resting, but be aware of missing central primaries now the complete moult is in progress.
Primary moult stage not described in the field, but central primaries obviously missing, probably P7-P10 old or P8-P10 old. Normal moult gap would be P4 fully grown, P5 fully grown at most. Central tail feathers may already been missing, indicated by the 'thin' tail. This would be in line with the common moult timing and strategy in the complete moult.
Innermost greater coverts and median coverts fresh, central lower lesser coverts are growing. Central greater coverts obviously missing, exposing the secondaries underneath, which show very abraded white tips.
Ill-defined head streaking in the hind neck and a black smudge on the bill. Red gonydeal spot doesn't exceed on the upper mandible. Upperpart colour rather cold grey, slightly paler than black old outer primaries.