Very educational, I learned a thing or two. Also, nice use of examples from other sources and examples of other animals.
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On your point of domestication vs tameness, Making the animal more docile and compliant is a part of the domestication process, as a calm animal is more easily handled than one that's cautious and afraid. To what degree this part of the domestication has been prioritized depends on what the species is meant to be used as. Dogs for example, are bred to be companions to humans, whereas chickens are bred for food purposes. It's only in recent years that they're considered to be pets. Therefore, chickens aren't domesticated to be tame, per definition. In any case, tameness even for animals bred to be friendly, like dogs, involves them having to spend time with humans. A puppy that grows up to never see a human, won't automatically become a house pet when it sees one.
Natural rooster behavior doesn't require human interaction. (In fact, the way some people treat roosters by chasing them, throwing them off hens and trying to "dominate" them, many of them would be better off without...)