So who wants to post the proof that chickens are domesticated, or, whether they should be considered domesticated based on what?
See, my argument is you shouldn't try to keep "domesticated chickens" because that means they need services that can only be supplied by electricity (e.g. heat, unfrozen water, timers, etc...) versus "regionally bred chickens", who thrive in your region.
Today's domesticated chickens grow out of their heart/legs in 8 weeks as meat birds, and layers need false light and heat or they can't thrive...IMNSHO.
Seriously???? You keep your chickens in a coop and run!


So, you don't feed them either? As wild birds would just hunt for their own grub all year round.
Unless you are raising a landrace breed that is living independently of any interference on your part, or have developed a feral flock, your birds are indeed domesticated. At that point, good stewardship would be to supplement their feed in the winter months if you live in northern climes and also provide water that is not frozen. You penned them up and presumably collect eggs and meat from them, that's the least you can do. Anything less is just pure negligence, no matter how you wish to twist it.
No, my flock doesn't need light or heat to lay either, nor do they grow out of their own bodies by 8 wks. Don't know where you've been living or what you've seen, but it's horribly skewed.
I got 37 qts. of good meat from 11 male birds this year, 10 only 4 mo. old(thought they were 5 but recently did another count on their hatch date). And those were raised almost entirely on food they foraged themselves, from 2 wks of age to death. I've also gotten 829 eggs in 238 days from a very small number of mature hens(4-6) thus far since start of count on March 16 of this year, without the benefit of lights, and those hens also produced 18 offspring on their own~no incubators~and raised them to maturity out on free range..didn't lose a one to predators. They free range all year round and come and go as they please, only using feed as a supplement to their natural diet....but they are as domesticated as any other chicken out there. They are just a little more free to make their own choices.
In the winter I provide warm housing~NOT heated~with good open air space, fermented feed once a day, and water that is not frozen. That's my responsibility to my winter flock.