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

adult black guillemot calling cepphus grylle drain pipe emerging hole nest nesting oban bay rocks scotland one animal lone single couple uk united kingdom urban wall water drain guillemot drain pipe sea wall argyll sea bird seabird