Well, apart from the pigeons, crows, and jays, there are a few more intriguing feathered friends who frequent my yard and trees.   I have some hummingbirds in the summer here in Portland, Oregon (do they fly south in winter), and, of course, robins (pretty much all year round). Then there are several kinds of little brown birds -- very nondescript until you get up close, whereupon you realize their plumage is really exquisitely decorative -- that sing really lovely songs. They are probably sparrows of one sort or another but I haven't identified them yet.