This juvenile/first-basic nominate Yellow-legged
Gull (Larus michahellis michahellis) was photographed
by Ronald Klein in Baltic Germany in September 1995. Ronald comments:
"The reddish-brown colouration of the plumage is a good feature
for identification from juvenile Herring Gulls. The wing-coverts
are heavily-barred like juvenile Great Black-backed Gull; this
is not typical for michahellis. Colour-ringed as chick
in Italy." Note that many mantle/scaps have already moulted
into first-winter: