Acquired: Pet store
Gender: Female
It has been over a decade since I had this bird, so I don't remember much, but here's my take on these little birds: they don't seem to do much.
Granted, I didn't know that these birds could be trained at the time, as has been pointed out to me in recent years, but, at the time, all my bird did was hang out in her cage and eat. I also don't recall her vocalizing all that much, either, which is a shame (they have a nice, high-pitched chirp).
Anyways, if you're interested in a bird that, at its very least, looks pretty, and, at best, can (supposedly) be trained and made into a companion, then a budgerigar seems like a good choice.