nonbreeding plumage; black dot behind eye (Northern Ireland; 2008-09-17)
Common Black-headed Gull Larus ridibundus
Native Range: Eurasia
Notes:
true to its name, generally the most common small gull of Europe; the black head of both sexes is present only during the breeding season; found in freshwater as well as saltwater environs, and in both farmland and urban settings.
nonbreeder in flight; grey mantle, white tail (Northern Ireland; 2008-09-17)
nonbreeder swimming; red bill with black tip (Northern Ireland; 2008-09-17)
frontal view of nonbreeder; red legs (Northern Ireland; 2008-09-17)
white underparts, most of head, and tail (Northern Ireland; 2008-09-17)
nonbreeder standing on one leg (Northern Ireland; 2008-09-17)