Patience, patience, and patience! Have you met the bird yet? How tame is "half-tame?" Has the blue-gold been around other birds? As with any time that one brings a new pet into a family that already has pets, probably a slow and careful period of introduction and initial segregation would be in order ... How long have you had your two current birds? I would certainly keep it away from the kitten at first, as Macaws have very strong beaks, and kittens can be fearless-but-fragile!