What species is considered the primary or sole wild ancestor of domestic chickens?

Answer

Red Junglefowl (*Gallus gallus*)

The general consensus points to the Red Junglefowl (*Gallus gallus*), native to Southeast Asia, as the primary, if not sole, wild ancestor of all domestic chickens.

What species is considered the primary or sole wild ancestor of domestic chickens?
birdanimalclassificationpoultryChicken