Picking up the birds' progress in July, Adam finds the Shiants colonies to be healthy and the puffins, guillemots and razorbill bringing in great bill-fulls of gleaming silver fish for their chicks. But elsewhere, the sea is failing to provide the birds with the food they need to survive.

In Scotland alone, 40 per cent of the birds have been lost and, further afield in Iceland, Adam sees colonies where nearly all the birds have been wiped out. He discovers how puffin hunters respond to the crisis and talks to both local people and experts about what could lie behind the catastrophic seabird declines. With the help of leading ornithologists and marine scientists, he begins to reveal an unexpected picture of the global forces driving the crisis, and the possible future for our seabird world. Show less