I love cc's! I haven't had the problems that others have had though, and mine do certainly like to free range. They peck at grass and plants (they love dandilion and plantain), and gobble up bugs with the rest of the chickens-- they just grow like crazy! If you leave oyster shell free choice, you don't have the leg problems so much.
Of my last batch, 1 died at 3 weeks-- I don't know what happened, we noticed one evening he was not doing so well, and he died during the night.
We had 1 with leg issues (this is before I learned about the os) at 4 weeks. My dh took roast cornish hen with baby red potatoes to work for lunch.
Aside from them, we processed the rest at 10 weeks-- they need the extra 2 weeks when they are free ranged. The free ranged cc's are considerably smaller. At 10 weeks, mine dressed out at about 4.5 lbs, which is fine by me, and customers tend not to want them huge either.
I tried to finish them on cracked corn, but they didn't want it:/ I wound up finishing them on scratch-- they knocked the corn onto the ground and ate everything else

The ducks came along after them and ate up all the corn
my current batch is 1 week old, and went out this morning into the outside brooder that my darling built me this weekend

I lost 2 of them the first night, but the rest are thriving. They will be out in a few weeks pecking with the rest of the birds.
I *think* maybe one reason that mine do so well is because I have them on the ground early-- my last ones were on the ground (though in a pen) at 3 weeks. Maybe when they are kept in the brooder so long, they miss out on learning to peck? I don't know, just a thought.
Exactly. I am feeding them out to serve my better interest not their own.
yup, what she said. They are food. They are well treated food, and they have it FAR better than their factory counterparts, but when it comes down to the line, they are FOOD.