Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

possible Viking Gull (argentatus x hyperboreus) 3CY, March 10 2014, Katwijk, the Netherlands. Picture: Mariska de Graaff & Mars Muusse.

Very pale plumage overall, including primaries. Difficult to draw a line between 'pale end' Herring and hybrids.