Can birds learn how to share?

[skydds]

I have two cockatiels, Charlie and Sasha. Charlie i have had for two years and Sasha i got about a month ago. I really don't think they like each other very much, they will tolerate each other but wont play, wont speak wont bother showing any attention towards one another. When ever i throw down a treat to share on their play pen Charlie tends to be aggressive and starts trying to beak punch Sasha. I was wondering is there was any way to train them to get along with each other or at least share?

[Michael]

There's no way to make them like each other or share. You can train them to tolerate each other in your presence. I wrote about that in this article.

[zazanomore]

Birds can share. The thing is, they only share on their terms.