An Atlantic Puffin Boasts with a mouthful of Sandeels. Puffins are able to hold a lot of fish in their mouth as they have a tongue with a serrated edge.
They feed the fish to their young and also show it off to attract a mate.
It looks like the Puffin is asking - "You want one?" ... or maybe its just thinking "Get away dude, you are cramping my space."