All chickens on Earth descend from wild junglefowl. Most come from the red junglefowl of India, but some scientists think the Sri Lanka junglefowl shared in the story too. Wild chickens started living near humans thousands of years ago, and over many generations they became the friendly farmyard hen you might know.
Male Sri Lanka junglefowl are show-offs. They have brilliant orange and gold feathers, with a long, curving tail that shines almost like a polished metal. The female is much plainer - browner, smaller, and easier to hide while sitting on eggs in a nest on the ground.
They live in the thick forests of Sri Lanka, scratching about on the floor for seeds, insects and small fruit. They roost - sleep - high up in trees at night, where snakes and wildcats can't reach them.
Like a farmyard rooster, the male crows. But the Sri Lankan call sounds different - more like a loud 'cor-cor-CHOI' that echoes through the forest at dawn. If you ever go camping in a Sri Lankan rainforest, this is the sound that will wake you up.