Herring Gull- Zilvermeeuw (argentatus & argenteus)
Herring Gull plumages:
hg sub-ad January
Herring Gull H-112075 3cy (argenteus), January 05 2002, Le Portel / Boulogne-sur-Mer, France (50.42N,1.34E).
A typical argenteus,
ringed Belgium, Bruxelles,
ringed as pullus on July 14 2000 at Zeebrugge (51.20N 03.11E).
The new scapulars
are plain adult-like grey. The bill is typical for 3cy birds in January,
pinkish base and a broad bill-band. Note
the rather brown second generation primaries lacking the mirror on P10.
Compared to Scandinavian argentatus, the general impression
resembles argentatus in 4cy, which also show an almost complete
grey scapular region and single grey feathers in the tertials, inner
greater coverts and a few lesser coverts.