All my birds free range as well. One thing about backyard cockerels v Cornish X is the backyard birds produce more dark meat because their legs and thighs are double the size of a Cornish that’s known for the huge breast.
RIR’s aren’t the biggest bird, but definitely not the smallest either. The extra cockerels I’ve processed were Naked Neck, Welsummer, and then the rest have been mixed breeds of Barred Rocks, Cochins, and Black Copper Marans mixed with Welsummer. Their breasts look skimpy compared to a Cornish, but they do have a lot of meat still.
As far as fattening them up, the fat adds flavor, but not more meat, per se. All mine have had huge legs and thighs, which I prefer, and a nice breast too.
RIR’s aren’t the biggest bird, but definitely not the smallest either. The extra cockerels I’ve processed were Naked Neck, Welsummer, and then the rest have been mixed breeds of Barred Rocks, Cochins, and Black Copper Marans mixed with Welsummer. Their breasts look skimpy compared to a Cornish, but they do have a lot of meat still.
As far as fattening them up, the fat adds flavor, but not more meat, per se. All mine have had huge legs and thighs, which I prefer, and a nice breast too.