Grey-headed Gull perched on a fence post

Cape Vidal, iSimangaliso Wetland Park, KwaZulu-Natal, South Africa (August 2009)

Also known as Grey-hooded Gull

For more information on this bird species see the following links:
Grey-headed Gull / Internet Bird Collection
Gray-hooded Gull / Bird Forum
Larus cirrocephalus / IUCN Red List of Threatened Species