In the garage on our fold up butchering table. Finished in the kitchen.
Heritage chickens weight less than the CornishX birds you can buy at the store. The legs are nice and full and dark and breast is a nicer flavor but a lot smaller. I do not like baking them. As said above I have been quoted $5 to process a bird and then it is just not financially worth raising your own.
We just killed 9 rooster about 18 -20 weeks. We breasted and legged the birds and boned out the legs and canned them.
From 9 roosters boned out.
Breast meat - 4# 1.5 oz
Leg meat - 6$ - 6.7 oz
7 quarts of pre-made chicken soup, just noodles or rice later. 9 pints of canned meat and 1/2 pint to use right away.
They make great soups, fahitas and anything else. The flavor is better, but I don't think they cook the same. Plus whole carcasses take a huge amount of space with the cavity void in the freezer. I have to fit a pig and venison in the freezer, so chickens are canned.