Gulls in NW Europe
(last update: September 25, 2011
Herring Gull (argenteus) sub-adult FRP EA558111 September 01 2012, Boulogne-sur-Mer, NW France. Picture: Jean-Michel Sauvage.
Ring history not availabe. Complete moult halfway. Note old greater primary coverts with brown centres, indicating sub-adultness, 4cy or 5cy bird.
