Just a bit of an overview, in case it helps explain things:

I got my first bird, Pepper, about five and a half years ago. Two years later, I purchased Salty, to be a friend for Pepper.

Despite my constant attempts, Salty was never tamed. He was content to be just Pepper's friend, and ignore me.

Another two years later, we got Peep. Peep and Salty were absolute best friends.

Another eight months later, Pepper was killed by a dog. Another month later, and Peep died of unknown causes.

Then, two months later, we made the purchase of Aderyn, a GCC, who was not only supposed to keep poor little lonely Salty company, but also be a replacement of Pepper, who was the absolute sweetest, friendliest (and, I'll admit, stupidest) budgie ever.

Now, it's been about three weeks since I got Aderyn, and she and Salty have already bonded quite a bit. And Aderyn doesn't like to be around me when Salty is in the room with her.

But when Aderyn is out of my bedroom, away from her cage and Salty, she is very friendly and extremely sweet, and likes to stay on my shoulder rather than flutter away like she does when she's near her cage and/or Salty.

But when I leave the room when she and Salty are together, Aderyn starts shrieking, calling me back into the room, and she'll continue shrieking for about three minutes, or until I come back (whichever comes first).

I'm afraid she'll lose any tameness she may have had, and want to prevent this. My first thought would be to separate the two birds, but I cannot, as my room is the only room in the house that is safe from my dog.

I was considering asking my friend (who already has four budgies) to take care of Salty for a while as I attempt to tame Aderyn a bit more; is this the right course of action, or should I attempt to keep training her while Salty is here?

Any advise would be gladly aprpeciated!