I just added a Hahn's and Odin is molting... Odin has bitten me twice since I've had him both since I got Salty... so I don't know if hes grumpy about the new bird, the molting or a combination.
I just let them do their own thing, Salty hangs out in/on his cage.. Odin where ever he wants (cage, couch, my shoulder) and so far they have ignored each other