Black-headed Gull (Larus ridibundus) - Adult summer
Seltjarnarnes, Iceland - June 23, 2006
Canon EOS D20, Canon 400mm f/5.6 L USM
© Martin Lofgren

Black-headed Gull (Larus ridibundus) - Adult summer
Iceland
© Jakob Sigurðsson

Black-headed Gull (Larus ridibundus) - Adult summer
Iceland
© Jakob Sigurðsson

Black-headed Gull (Larus ridibundus) - Adult winter
Kalmar Castle, Småland, Sweden - January 17, 2004
© Magnus Hellström

Black-headed Gull (Larus ridibundus) - Second Calendar year
Kalmar Castle, Småland, Sweden - February 29, 2004
© Magnus Hellström