They are just basically Thai gamefowl culls intermingled with semi feral bankiva types. Village chickens. If some missionary dropped off a rhode island red it is in there too. The thais themselves aren't incredibly pure. If it won it was used for breeding. Crosses are often tried. All sorts of traits show up in thai games. Beards, muffs, flat combs, even a feather on a leg now and then.
Hmong people are basically the rednecks of Southeast Asia. Very resourceful. Not surprising that the fibro gene would show up in such a region. There are stateside Hmong immigrants that have Thai games like the ones back home, that may or may not have any blood from back home. They are masters of recreating things with what they can get their hands on. It becomes Hmong or Thai, because the people are Hmong or Thai. I have come to understand names more as a form of patriotism than a genetic reference.
Many of the folks that raise Thai games have some of these as meat chickens. Lots of variability. I have Thai crossed on barnyard fowl. Very productive, lots of instinct, and big. Do well just foraging in the pasture. Not extremely winter hardy, but prolific enough for that not to matter.
The Thais and Ga Noi seem to be very productive compared to their Asil or Shamo counterparts. It seems that the people of that region had an eye on dual, or actual triple purpose fowl. Entertainment, eggs and meat.
I have thai type crossed on bankiva type games as well. More winter hardy and take foraging to a whole new level. Could create an epidemic around your place if you let them. I have to literally hunt them to keep them in check. No fibro gene in any of mine though. Have seen fibro games of differnt types though.
