We are new and enthusiastic but admittedly ignorant at raising chickens. We started with 6 RIR from the feed store and lost one (we expected it was smaller than the day olds and falling over; died before we made it home but son insisted on him). Then we got 3 more a week later. Chicks are doing well and now feathered out. Now at 7 weeks I've got my original three have bright red combs and wobbles while my other three just a week younger haven't even began to grow larger combs. I'm thinking the original three were all roosters and now hoping to get information on butchering. Though they are free range (in a private fence) we cannot have rooster and would want to butcher them. When should we butcher? We believe it best to be safe than sorry and would rather kill a hen than risk having rooster crowing.