I have seen this somewhere and have searched everywhere for it, but cannot find it. Anyways, I know that Passion still has 28 days left n quarentine, but once she is out, when woudl be a good time to add her to the bigger cage with Casper & Jasper?

you can intro them after the quarentine period out of the cage see how they get along or put a towel on top of the cage and put her up there to explore and let the other ones check her out. Don't let her walk on the side or on top where they can nip toes. I added Merlin in a 2 weeks, some do it the sameday.

okay thanks, they can see each other through the window that seperates the rooms (Don't worry it is closed), and Casper & Jasper spend a lot of the time looking at her through the window, guess they are curious. So after she comes out of quarentine, I will put Passions cae next to their cage and see how they react through the bars, then do a inntriduction in the bathroom before putting Passion in the cage with them, that way if they try to fight I can get Passion faster then I can Casper or Jasper and out her back in her cage.

I wouldn't put her right in the cage with them at all. I would introduce them by placing the cages next to each other (after quarantine is up) for a few days first, then let them out together if all seems well. I'd leave both cages open, and let the birds explore each cage as they are interested. When she keeps sitting in the new cage and the other two act like they really want her there, only then would I allow her to stay. She may want to retreat to her old cage for a few days. Even if they get along outside of the cages, inside with the cage closed up could be an entirely different matter. I'd keep the cage she's in now alongside the new one for a few days after she seems to have "moved in" with the other two just in case.