I recently got a cockatiel that had lived in a basement with very little social contact for years. He's really shy and will hiss at anything that comes close to him. His cage is right next to my Zebra Finch, I can already tell its doing some good. I'm just a little worried about him and I want to know if I could be helping him more in some way. He screams whenever someone walks out of the room he's in. Otherwise he's super friendly inside his cage and physically he looks perfect.