A bad headache

This is a young thrush (Turdus philomelos), which you can tell from the pale marks on its wings. While I was sitting at my desk, it came in through an open ranch slider, flew over my shoulder and crashed into the window in front of the desk. Startling for both of us, and the bird ended up seriously dazed. I took it outside, where it seemed to have broken a wing or a leg (oh no!), but it became apparent pretty quickly that it was fine, it was just dizzy and having trouble staying upright. We put it on a patch of ground across the road where I could keep an eye on it, and eventually it flew away.