nominate Lesser Black-backed Gull (L. fuscus)

(last update: 9-11-2009)

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

(2 images) Larus fuscus fuscus 2cy, August 07 2002, Tampere, Finland (61.33N 24.59E).

Probably one of the most advanced 2cy fuscus present in Finland by early August; not only in plumage but also in soft-part colouration. 

The scapulars and wing-covert moult is much in line with other 2cy birds, like C6XV. The second generation greater coverts, innermost median and outermost median coverts and randomly some lesser coverts are brown second generation feathers. The central medians and lesser coverts have been replaced for third generation feathers. The scapulars are a mix of second generation and third generation feathers and, as in many birds, the last second generation scapulars can be found in the central part of the lowest row of lower scapulars. The upper tertials are replaced for third generation.

All secondaries are second generation, P1-P2 are replaced third generation primaries, P3 is missing and P4-P10 are second generation primaries, moulted in the post juvenile moult last winter. The rectrices are all worn second generation tail-feathers.

Note the pale pink bill-base, the hint of yellow in the bill-tip and the small red spot on the gonydeal angle.