Simplify the following text for a Grade 10 native English-speaking person.
Original: Junglefowl are the four living species of bird from the genus Gallus in the Gallinaceous bird order , which occur in India , Sri Lanka , Southeast Asia and Indonesia .
Simplified: Junglefowl are the four living species of bird from the genus Gallus in the pheasant family , which occur in India , Sri Lanka and Southeast Asia .