As you probably know, I recently got a young (now known to be male) budgerigar that I named JoJo, after Jonathan Joestar:
After a bit more research, I concluded that my little JoJo would be happiest with a friend. So, I went back to the place where I got him, and less than an hour later, returned to him with a green and yellow budgie that I decided to name Gyro:
While I wasn't sure at first whether or not to put Gyro in with JoJo instantly, I do not regret doing so now. The minute I put them in together, they were instantly friends.
Since then, they have only bonded more! I have seen Gyro preening and even feeding JoJo, and I have also noticed that she shows him when she finds some tasty millet!