Gypsy is the quietest of my three birds, you hardly know she is in the house but I did hear her hiss when she first came to us, she wasn't used to us and when I tried to handle her she would do that hiss but not anymore, she is a sweet little bird and steps up nicely now. I think Piper will calm down more as he gets more used to his new family, it took a while for Gypsy to allow us to handle her and to step up but she did and Piper will too.