The Giant Babax lives in the highlands of the Tibetan Plateau. It eats insects and berries during the breeding season; outside that season, reports also list crop seeds and plant rhizomes.
In the Tibetan nominate subspecies, the head and back are greyish with brown streaks, and the tail is pale brown.
It inhabits high-altitude grassland and scrub. During the breeding season it eats insects such as moths and flies and berries; outside that season, reports also list crop seeds, berries, and plant rhizomes.
An extinction-risk assessment has not been added yet.