I have always felt that two is better than one for friendly, flocking birds. I believe that they are more socially enriched when they can communicate with another (similar) bird, and that they feel safer (bigger flock) and happier (someone to hang with when you are at work).
Apologies for bumping up something already discussed but I was having this discussion with a fellow breeder yesterday and was searching for opinions when this thread came up.
He agreed with the consensus here that one is better.
I disagree. I think we must think of what's best for the
bird's quality of life (and
not our own) and couldn't agree more with Zoe!
The problems people are experiencing are because the majority already have one bird before they think of adding another.
I think it is best to get two birds
from the very beginning to avoid problems. You introduce them to each other and to their new surroundings at the same time, then neither bird has an advantage over the other and they are more likely to adapt together.
If you are a new bird owner looking to get your first bird follow Zoe's advice above and get two. Improve your chances of your birds getting along by getting them both young. If your birds are not young, that's no problem, just introduce them slowly (and in a neutral part of the house).
Bees, guinea pigs, cats, parrots etc are examples of social species. If you can't keep two, reconsider whether getting one at all is best (for the animal, not for you).
Disclaimer: my advice is for the average bird owner with a love for birds but with other commitments as well. Unless you are someone who lives alone and spends the majority of your time at home, this applies to you.
QoL