I bought an older bird...last 2 digits on his band is 97...so I am asuming he was born in 97...He is VEY vocal...whistles Andy Griffith and another tune I have no clue what it is...sounds like he mocks other types of birds too...but I wand to get him to where i can let him out of his cage and hold him....but when i put my hand anywhere near him he litterally chases it down and attacks it...lol...when I get beside his cage and talk to him he will come right up and cock his head to the side and listen and whistles back at me...just what can I do to get him hand tamed