Odds are it will get jealous. So every morning, until your birds start getting along, do everything for you cockatiel first. Say hello to it first, take care of its food and water first, let it out to play first, etc. Eventually, when they start getting along, you can do it in whatever order you want. Hope this helps!

Your bird may not get jealous but will show dominance and aggression for its home

It may get jealous for your attention or welcome another bird to keep it company. There's only one way to find out.

I have had my cockatiel for 9 years, so we are pretty attached to each other. I am considering getting a Jenday conure, but I don't want my Cockatiel to get jealous of the new bird. So I was wondering, will my bird get jealous of a new bird?