I have a Grey as well, she (Boogie) is now almost 8 yrs old and have had her for seven. My three dogs were very interested in her when they were pups but have since learned to ignore her (5 yrs), if Boogie flies off her cage and lands on the floor, the dogs will not even bother to go check up on her, they are so used to her and she to them. Boogie is always free and out of her cage when we are home. We recently added a fourth dog to our menagerie, my Mom had to be placed in a nursing home so we took her dog and he acts the same way as our dogs, will not bother with Boogie. So we all co-exist very happily.
and having a ball.