A Kittiwake, Rissa tridactyla, on the Farne Islands, Northumberland, UK, next to a pool with red algae. Kittiwakes have declined drastically due to climate change causing their main fish prey species to migrate further north to find cooler sea temperatures.

seahouses northumberland coast sea uk shore sea shore farne islands north sea ocean farnes farne rocky outcrop island seabird seabirds sanctuary wildlife protected reserve national trust cliff sea cliff wildlife guano nesting cliff white kittiwake rissa tridactyla decline declining global warming climate change gull seagull red pool algae growth colour colourful mineral phosphate