Another Herring from the last days. Several have been reported this month in Portugal, in Lisbon area at least 4 to 5 diferent gulls, 3 adults, 1 st winter, and a 3rd winter in the south side of the estuary mouth.
Dafundo beach 06.01.2012 - Adult Herring Larus argentatus argentatus.
Darker mantle, very much like our Yellow legged gulls, combined with primary pattern, and still growing P10, make it a good candidate for the northern subspecies.
Adult Herring 28.12.2012 at Santo Amaro de Oeiras with typical primary pattern of ssp. argenteus.