aggresive

I got a cockatiel from my friend at school almost two weeks ago now. His name is Smokey and he's seven, turning eight, years old. He had a pretty poor life at his old home with my friend and her family. They loved him to bits, but after training and socializing him, he got neglected and for a...

hi guys.. seems like my tiel lost some trust or something..he was fully tame and happy but now for some reason he opens his beak when my hand gets close to him... reminds me of the time i first got him.. a bit skittish.. he still loves scraches and eats out of my hand.. but why is he opening his...