The Juncos have returned to Wisconsin! You won't find them here in the summer, but they're the first to arrive in the Fall and the last to leave come Spring. They'll visit platform feeders, or feed on the ground below a tubular feeder. In winter, they move about in a mixed flock of Black Capped Chickadees, Red Brested Nutchatches and Downy Woodpeckers. I love the delicate pink shade of their beaks. Roger Tory Peterson notes, "This bird is charaterized by white outer tail feathers that flash conspicuously as it flies away."
The Juncos' arrival reminds me that even when we cannot see it, Mother Nature and Father Time have matters well in hand.
For more info about Juncos, see: http://animal.discovery.com/guides/wild-birds/d-h/dark-eyed-junco.html