I dont know about a heritage breed but , I really suggest a standard breed, barred rocks and speckled sussex are wonderful birds to keep, matter of fact you may get a roo from each that you may not wanmt to eat, plus they are great layers
ok heres what we do roughly as per season (keeping the roo approx 16 weeks or 3-4 months)
spring
let any hens that want to brood, brood (as production starts to pick up as far as layin goes)
order chicks in the mail, and raise anything we need to purchase, (its turkey season so that puts some fresh turkey in the freezer)
any roo in the fall from last year should be big enough for the freezer, in a couple of week the hens from the same group should be getting to lay
(it takes roughly about 20 weeks for them to lay)
summer
letting hens brood
if any of the spring bunch is ready to go ill take em
(they would have to be first thing in the spring)
neighbors usaully buying hens as fast as we can get them feathered out
fall
same, but my do batch of cornish x to make up for more hens then roos hatched
now winter gets kinda tricky
anything that causes problems (roos and any unwanted animaL gets dispatched)
I like to process in the winter as naturally you have more fridge space as cooler temps, and birds are hoitting the feed more
all our birds free range all year long
to maybe to save a lot of typing
if you have birds that will brood, and you let them youll have more chicken then you will know what to do with,
if your raising chickens for meat for you and friends like your doing your eggs, your gonna need to order some chicks in the mail,