Standing on the deck yesterday afternoon Carole & I saw a belted kingfisher streak along the river bank, land briefly on a low limb, then streak away again. Checking Peterson's guide, I see that he probably just arrived from wintering in Panama. Smart boy. Also saw the first hummingbird yesterday, just out of the corner of my eye. He, too, according to the guide, would have just arrived from central America. By the way, does anybody know about the taxonomy of birds? Is the relationship between bird families conventional or is there an anatomical or other biological reason why, say, the hummingbirds & the kingfishers are next to each other in the bird guide & in this chart?