Okay, so I got my first bird about a month ago, and today we moved him into a bigger cage (the previous one was only large enough for about one, but the current one is large enough for multiple birds), and my parents and I were talking, and we're going to get another budgie soon. We're gonna get another male, from the same pet shop. We're pretty sure that all the budgies there have the same parents as they're all the same age (they don't have very many), which is another reason for not getting a female (we don't want some poor little inbred bird to be born), so, well, to my question, how should I introduce them? They have lived together before and are possibly brothers, but will they recognize each other? I have heard somewhere that budgies are social animals, so two males will be fine together, right?