I have been raising 9 chickens, originally supposed were all pullets, now I realize only 2 are...I have 2 Australorp pullets, 5 roosters, plus 4 Barred Rock roos...now my decision is to figure out which ones I will keep, the two pullets for certain, but which roos? Do I breed the BR to the Aust. or keep the same roos? Help...I am new to this and am not sure what to do?