This little sparrow looks okay now but it had flown hard into our sunroom glass door. I happened to be resting in the sunroom facing the door when I saw the bird and heard the thud. Feathers flew and the bird dropped, sprawled out on the patio. When I got up to investigate it got to its feet after about 10 seconds and just sat there, not moving. It was at least 30+ minutes before it finally flew away, obviously okay.