Me and my wife have 2 cockatiels, a beardy, a ton of fish, and 2 dogs (a boxer and a Chihuahua). The boxer wants to play with / eat (im not sure which) the beardy and the birds so the birds and lizard get their own room upstairs, now my question is whether it is wise to even see if they will tolerate each other if I let them out at the same time. I mean are there any diseases that they can catch from one another? Has anyone tried this?