His mate, Brownie, was about as friendly as a seaslug ~ definitely not very bright, but she could lay an egg about 3/4 the size of a standard SMALL commercial grade egg.
These animals were about as close to the wild chicken you could find. We raised them outdoors with a small pen for their safety. They could come and go as they pleased. Brownie liked to lay her eggs at a small nest she'd built at the back step.
I'm afraid you guys lost me when you started talking about chickens that can't fly, and who have a difficult time surviving in urban environments, or on their own.
If you want to submit an argument based on the premise that your BANTAM ROOSTER is representative of domestic chickens, go right ahead.