Read our threads on Joey and our other rescues, What we do is [after quarantine] is to introduce the new baby to the flock leader [buster] from then on , Buster comes first in everything, feeding, toys, if you buy a toy for the new baby, buy one for buster and Buster gets it first...Buster gets greeted first,etc. When you move them into the same room, there's no reason to not let them out of their cages, 9 out of ten times, they'll ignore each other! just keep a open eye. Plan on spending a lot of time observing both of them, your going to have to know each of their differentence, and treat them accordingly. To save a rescue or re-home is love......Jayd