I live in Louisville, KY and this place was full of mockingbirds this past fall. I had 10 to 15 pairs just near my home in a subdivision. They are beautiful and will sing on warm nights

Thanks litholad, and now that you've mentioned it looks like both birds may be Cowbirds. I'm not sure now if the near one's head is brown or purplish as it would be on a Brewers Blackbird. I've never noticed them around before but Sibley's says they often travel with Blackbirds and I sometimes have small groups of Blackbirds around.

Yes, indeed, poor thing. We had taken out the screens in that window but put them back up so that if a bird hits the bottom part, they have a bit of a 'cushion.' Trouble is the screens are only at the bottom, there's plain glass up above. I do think, however, that most of hits we've had have been on the bottom. Swainson's thrush...hmm, my bird book shows it to be brown. Size is probably right. We're tried various decals for the windows esp. that window since it's not too far from a feeder and right now there are several dogwood trees heavy with berries. But nothing seems to work. Ideas? One thing...I saw the bird hit and it did not hit straight on but came in from the side almost as if it was seeing its shadow and attacking. Thanks for your help. I think I saw another bird of the same type and have my outdoor camera set up to try to catch a picture of it. Linda...

I can see why you have doubts, it looks a bit smaller and those feathers sticking out at the front are suspicious. Might it be a young scrub jay? Im going to look into this further...brb