Grey Junglefowl (Gallus sonnerati) - Describes the physical appearance of the male and female of this species. Includes facts about its range and habitat. - http://www.gbwf.org/pheasants/junglefowl_sonnerat.html
Green Junglefowl (Gallus varius) - Images plus facts about the range, physical appearance, and habitat of this species. - http://www.gbwf.org/pheasants/junglefowl_green.html
Ceylon Junglefowl (Gallus lafayettei) - Range, habitat, and breeding of this species. Includes photos. - http://www.gbwf.org/pheasants/junglefowl_ceylon.html
What is a Chicken? - Article about the biology and classification of chickens, which descended from the wild Red Jungle Fowl (Gallus bankiva, also called Gallus gallus) of Southeast Asia. - http://www.urbanext.uiuc.edu/eggs/res08-whatis.html