The common loon

Yesterday was our first loon siting (kind of) of the season. First we heard it. Then hubby saw it, pointed, and I turned just in time to see the ever-widening water circles that he left when he dove. We waited. And waited. And when he surfaced far from the place where he dove, hubby again pointed, and again I looked just in time to see the water circles. We waited and waited & never did see where he surfaced. Amazing divers, those birds. But today I saw him (or another one) swimming near our dock.
The photo above is one that I took last spring of a common loon with his beautiful summer plumage. I wasn't close enough to take a photo today, but he looks much different in his "winter coat".