does he respond when you call him? have you tried calling out his name (or any word he responds to) outside/within your neighborhood?

depending on his mood, our parrot used to respond when we call him. sometimes he says his own name, calls us ugly or says hello depending on his mood. he even flies out to land on your shoulder or head (and poops there) when he felt like it. a night or two after he was lost i had the urge to call him out in a street on my way home but didn't because it was late and i didn't want to wake up the neigbors. the next morning some people told us that they heard a noisy parrot in that same area. when we checked he was gone. i should've called him out that night.