My Mom has two parakeets kept in the same cage, and she has had similar problems. She sometimes seperates them for a little while, and then they realize that they really DO want to be in the same cage. So sometimes that helps. Also she will cover their cage, and that also may help to calm them down when they are in a nit-picky mood.

Do you ever let the birds out of their cage?? I was just thinking that it also might help if the food dishes were outside the cage. But birds are similar to dogs in that they establish a pecking order. Sometimes it takes some squabbling to get that established, so it isn't abnormal for their to be picking going on. I wouldn't tend to get worried about it unless you notice that one isn't getting food to eat, or they are severely fighting. Then I would try separting them into separate cages for a while. Hope this helps!