The Loons are migrating threw right now. In Britain Loons are called Divers,and this would be a Great Northern Diver. And dive they do, after fish. Hear their haunting call at www.flickr.com/photos/bryanto/2434046319/
When I first saw this bird while paddling on Desna river (Chernihiv obl., Ukraine) I was greatly amazed. I thought black storks lived far away from people in extremely wild places. But since that I met them almost every day.