Theoretically, bluebirds are here year 'round. I never seem to see them in deep winter, though. Either 'deep winter' is over for Atlanta this year (tomorrow is Groundhog Day, come to think of it, so another opinion on that subject will be available soon) or the pattern has broken, as there's a pair at the back yard feeders right now, male in fresh, bright blue, plumage.

Must go make sure the bluebird box is cleaned out, in case they're looking for a nesting spot....