I had a visitor today and she wanted to see my birds and I forgot that the back door was open. Yes, he flew outside and has not been recovered. It feel so terrible about this as the weather will be in the lower 40's tonight. I have his cage outside and cockatiel sounds playing. I am soooooo upset about this. Daffy and Willie have been flock calling since he left and it got dark outside. Please pray that someone finds him.