Dutch Herring Gull
Dutch Herring GULL Larus argentatus argenteus IN JUVENILE AND 1ST WINTER PLUMAGE.
Dutch Herring Gulls begin to grow a new 1st winter mantle from the end of August onwards replacing juvenile back feathers.
Radioactive Robins and other birds
Norman Deans van Swelm, copyright remains with the photographers. Webmasters Rombout Mager, Juna Wisse, Charles Deans van Swelm
Dutch Herring GULL Larus argentatus argenteus IN JUVENILE AND 1ST WINTER PLUMAGE.
Dutch Herring Gulls begin to grow a new 1st winter mantle from the end of August onwards replacing juvenile back feathers.