From page 24 of Birds of India:
The Phasianidae family of birds includes Partridges, Pheasants, and Allies. When threatened, they prefer to escape on foot despite their powerful flight capability. They feed and nest on the ground, but many of them roost in trees at night. They forage by scratching at the ground with strong feet to expose food hidden among dead leaves or in the soil.
Birds of India: Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the Maldives
Richard Grimmett, Carol Inskipp & Tim Inskipp
The best field guide to the birds of the Indian subcontinent is now even better. Thoroughly revised, with 73 new plates and many others updated or repainted, the second edition of Birds of India now features all maps and text opposite the plates for quicker and easier reference. Newly identified species have been added, the text has been extensively revised, and all the maps are new. Comprehensive and definitive, this is the indispensable guide for anyone birding in this part of the world.