Monthly Archives: July 2015

4CY Presumed hybrid Lesser Black-backed Gull x Yellow-legged Gull Green Y.BVA – 2014/2015

5CY leucistic Lesser Black-backed Gull Green Y.AXL – 20150706

5CY European Herring Gull Green YBPS with sub-adult features (incl. tertials) – 20150622

European Herring Gull Green YBDS as 2CY, 3CY and 4CY

Lesser Black-backed Gulls in the IJmuiden colony – 2015 breeding season

European Herring Gulls in the IJmuiden colony – 2015 breeding season

30CY European Herring Gull Green FAMA – 20150711 (Birthday)

Adult Common Gull White EJ38 – 20150710