Pal Hermansen / Kittiwake (Rissa tridactyla) breeding on house wall, Norway, March.

Gerrit Vyn / Flock of Heermann's Gulls (Larus heermanni) standing on intertidal rocks. Jefferson County, Washington, USA, August.

Wild Wonders of Europe / Bartocha / Lesser black backed gulls (Larus fuscus) and Herring gulls (Larus argentatus) perched on posts in the Baltic Sea silhouetted at sunset, Mn, Denmark, July 2009

Guy Edwardes / Great black-backed gull (Larus marinus) silhouette against sunset, Saltee Islands, Co. Wexford, Republic of Ireland, June

Marie Read / Royal tern (Sterna maxima) perching on a sand castle on a beach, Fort De Soto Park, St. Petersburg, Florida, USA, March.

Wild Wonders of Europe / Widstrand / Gulls (Laridae) flying around Atlantic cod (Gadus morhua) fishing boat with sun low over horizon, Senja, Troms County, Norway, Scandinavia, January 2015. Cod are attracted to this area to feed on the...

Brent Stephenson / Black legged kittiwakes (Rissa tridactyla) pair greeting each other at the nest, Isle of May, Firth of Forth, Scotland, July.

Staffan Widstrand / Kittiwake gull (Rissa tridactyla) on house wall, Vardo town, Varanger Peninsula, Norway, March.

Nick Garbutt / Aggregation of butterflies - mainly Bornean sawtooth (Prioneris cornelia), Yellow emigrant (Catopsilia scylla) and Orange gull (Cepora iudith) taking minerals from damp area on rainforest floor. Tembu...

Guy Edwardes / Herring gull (Larus argentatus) silhouetted at sunset, Kilmore Quay, County, Wexford, Republic of Ireland, June

Wild Wonders of Europe / Widstrand / Herring gull (Larus argentatus) in flight, Flatanger, Nord Trøndelag, Norway, August 2008

Simon Colmer / Herring gull (Larus argentatus) silhouetted on rooftop at sunset, UK.

Ben Osborne / Dolphin gull close-up of legs {Larus scoresbii} Falkland Is

Marie Read / Male Downy woodpecker (Picoides pubescens) clinging to small tree trunk in winter, with orange foliage in background. Freeville, New York, USA. December. Topaz DeNoise AI applied.