We keep ours for eggs in a coop on the lawn. They can't free range as they are totally scatty and wouldn't return as hens do.
Some of ours have occasionally escaped. Some will return and go back into the coop if you leave the door open for them. My daughters favourite, 'Japan

' went on a walkabout for 3 days but came home eventually.
Males are VERY aggressive. We have a couple living together happily at the moment but in general they will do each other serious harm once sexually mature at around 6 weeks old.
They need plenty of hens per cock bird as they are very 'active'.
They love a dust bath.
Seem to be pretty hardy and survived -19 up here during those bad winters. We did cover the coop at night with carpet.
Friend did eat hers. She said they were surprisingly meaty!