black-headed gull
black-headed gull black-headed gull
black-headed gull
in winter plumage
 black-headed gull
black-headed gull
a first winter bird
 black-headed gull
black-headed gull black-headed gull
black-headed gull
almost summer plumage
 black-headed gull


black-headed gull black-headed gull
summer plumage


black-headed gull
battling the waves ...
 black-headed gull
black-headed gull black-headed gull