Buff-bellied Pipit

The buff-bellied pipit is the name formerly used for the American pipit, a small songbird about 16cm long and 22g with lightly streaked grey-brown upperparts, a buff breast and flanks, a whitish belly and dark bill and legs. It eats insects, breeds on tundra and winters in open, lightly vegetated areas, and often runs on the ground (Wikipedia, general species account).

The source describes only the North American birds; it does not cover Asian populations or name Nepal or the Himalaya. The species is on this guide's Nepal list, but its status there should be checked against a Nepal checklist (Wikipedia, general species account).