[2] Although originating in Asia, remains of junglefowl bones have also been found in regions of Chile, which date back to 1321–1407 CE, providing evidence of possible Polynesian migration through the Pacific Ocean.

[3] The junglefowl are omnivorous, eating a variety of leaves, plant matter, invertebrates such as slugs and insects, and occasionally small mice and frogs.

As with many birds in the pheasant family, the male takes no part in the incubation of the egg or rearing of the precocial young.

[9] Green junglefowl–Gallus varius (Shaw, 1798) Red junglefowl–Gallus gallus (Linnaeus, 1758) Sri Lankan junglefowl–Gallus lafayettii (Lesson, 1831) Grey junglefowl–Gallus sonneratii (Temminck, 1813) More recent phylogenetic evidence supports the closest relatives of Gallus being the bamboo partridges in the genus Bambusicola, from which they diverged about 15 million years ago.

Prehistorically, the genus Gallus was found all over Eurasia; in fact, it appears to have evolved in southeastern Europe.