A trip with Billy Shiels (or one of the others) lands you on Inner Farne, home to nesting seabirds including the Atlantic Puffin. Puffins nest in burrows in the ground and have to run the gauntlet every time they return to the nest with their hard won sand eels. Waiting to attack and, if possible, relieve them of their catch is a gang of black-headed gulls. Amazingly, the puffins can identify their hole among the hundreds of others and often fly straight in to their young. Those that miss, lose their catch.