Hermit Thrush was standing on the sidewalk, closing its eyes and not moving when we walked by. Right leg/foot may have been deformed, as bird appeared to lean on or favor left leg. We suspected bird crashed into library's window. We talked about moving it; but opted to leave it undisturbed - hoping it might be one of the lucky ones, collect itself and fly away. When we walked back by 45 minutes later, it was gone.