Hi, I just found a feed store that has some light Brahma chickies. I think they are gonna be close to 3 weeks old. I want 3 or so. Should I try for 1 roo with the 3? Do they make nice roos? I have all the other ones listed in my siggy that are all about the same age. SO new to chickens. Is there any discerning features I want to look for that says pullet or any other features to look for that says good or bad genetics? Thanks!