so...theres an auction on the 21st.. I'm mulling over either trying to get a group of buttons, or must keeping my silver pair, and working off of thier eggs, wich are fertile. the female button has built a nest on the corner of the cage and layed an egg in it, I'm going to see if she will go broody, but a question, whats the risk of adding new buttons(possibly more males) to a male who already has a girl??, i have seen the damage he's done to her while mating (never SEEN the mating,but I see the wounds) can males kill each other??, and what about females?? whats a good number for a 3ft long, 2 ft wide and 3 1/2ft tall cage??