Black Guillemot (Cepphus grylle) pair sitting in a drain pipe that they are nesting in, one bird is calling. Black Guillemots nest in drains and holes in the sea wall in the middle of Oban town centre. Argyll Scotland, UK

adult beak open black guillemot calling cepphus grylle drain pipe emerging hole nest nesting oban bay pair rocks scotland two animals couple uk united kingdom urban wall water drain guillemot drain pipe sea wall argyll sea bird seabird