I disagree that Prairie Chicken bones are Identical with Junglefowl. I am an anatomist and there is a great deal of difference between the two.They are hardly related to one another.
Faunal bones in Egyptian digs are very difficult to classify when it comes to avian specimens. One reason is that avian bones are hollow, more so in some species than others,leading many cultures to eat the entire bone, especially those of terrestrial species. Rodents and insects are also capable of consuming both distal ends of cokked galliform bird bones but not those of ratites or anseriformes due to different physiological factors mostly dealing with density and porosity of bone.

We have been attempting to determine if bones found in Karnak are those of guineafowl or domestic fowl or even coturnix quail or Alectoris partridge for twenty some years.
If one studies their archeology closely, there are very few if any attempts to classify bones that belong to fowl any older than a few centuries old in tropical countries even in countries where it is obvious they have been eaten in the region since time begins.

Magellan clearly described chickens and chicken eggs in his writings. He was the first European to describe the blue egg laying South American chickens. No offense to Kenuche Lover but some of that pshawwing is a bit over the top. The genetics of the domestic fowl in question is clear. The splitting of the RFLP types took place somewhere between fifty and twenty~ thousand years ago. Yamashina et al published a number of fascinating manuscripts largely in Japanese on the domestic fowl of Oceania and the Pacific which other authors have followed. THe basis for using these different species of junglefowl and their hybrids on islands is based on their fecundity. It takes a specific number of generations before female are capable of succesful reproduction and another number of generations in genetic isolation before certain mutations and phenotypey are dominant and breed true. With or without physical evidence of the domestic fowl in coastal villages the fact is there are very unique forms of domestic fowl that only occur in regions that correspond with some of these human lymphocyte antigens.
This is to say that like the human populations, the domestic fowl for whatever reason, also share narrowly defined genetic stock.