Vega Gull Larus vegae This is the commonest form of 'Herring Gull' in Japan. Choshi fishing port where thousands of individuals are seen is one of the biggest wintering site for this form.
1st winter/summer 1st winter/summer Juv/1st winter 1st winter Juv/1w, and some other taxons? Juv/1st winter Juv/1st winter 1 adult and juv 1st winter 1st winter Juvenile 1st winter 1st winter 1st winter Juv./1st winter Juv./1st winter Juv./1st winter Juvenile Juvenile/1st winter 1st winter