I don’t know about a Citron, but if this bird has been your baby for a while a new bird will cause some jealousy, and I would keep both birds caged during the introduction or do one at a time for a while and show your citron that you still love it the same, still will do the same things with it as you always have in the past and then when you have some time get them out at the same time, and be prepared to break up some fighting and return them to their cages until they get used to each other.

this has been the case with my conures and cockateils. I imagine the same is true for the bigger birds as well.

And it will take 3 to 8 weeks at most or more at least that’s how it happened in my case.

I’m confused. Are citrons just bigger cockatoos?I am pretty sure that I’m wromg but here is my advice. Do not put two birds together that are different in size. Fight happen with same size bird. When I had four budgie I was going to buy two small cockatoos but I didn’t because the pet store owner warned if the cocaktoos got into i fight with them they might not survive.

Here’s a quick correct list of popular cockatoo species…cute birdz, you may be referring to cockatiels which are in the same family as cockatoos, but are the small common grey birds with orange cheeks…(is that what you were talking about getting 2 of?)
1.) umbrella cockatoo (large white birds with pale yellow under the wing feathers) 2.) moluccan cockatoo (peach colored, very large birds) 3.) bare eyed cockatoo (white with fleshy eye rings circled with pale blue) 4.) citron crested cockatoo ( white bird with orange crests) 5.) lesser sulfur crested cockatoo (white bird with yellow crest) 6.) greater sulfur crested cockatoo (basically same coloring as lesser cockatoo, only a bigger bird) 7.) Goffin’s cockatoo ( white cockatoo, smaller than some of the other types)

All are MAJOR commitments, active, destructive, loud and demanding. Not to be bought on an impulse, whim or if every person in the family isn’t on board with all the challenges of owning a cockatoo. Need much time out of cage, tons of toys and wood to destroy, a huge cage plus a playgym or two, and are prone to feather and flesh mutilation, incessant screaming and biting if unhappy, lonely, bored or stressed. Can be loving, funny, are smart and clever, and can make great companions in the right home. There…that’s my bit on cockatoos!