Olive-backed Pipit

The olive-backed pipit is a small pipit, about 15 centimetres long. It is greenish brown above, streaked with darker brown, with a whitish supercilium, double wingbar and whitish outer tail feathers, and whitish to buff below with dark brown streaks on the breast and flanks. It resembles the tree pipit, but its back is more olive-toned and less streaked, and its head pattern differs, with a better-marked supercilium. The call is a single tseep or spek, and the song is lark-like and given on the wing. (Wikipedia, general species account)

It breeds from Himalayan Pakistan and India through Nepal and China, east through Korea to Japan, and north through north-central Asia into northeastern European Russia, up to 4,500 metres in eastern Nepal. It is a long-distance migrant, wintering from peninsular India to Southeast Asia and the Philippines, in evergreen woodland. It is seen singly or in pairs, runs about on the ground searching for food and flies up into trees when disturbed, with a jerky, undulating flight. (Wikipedia, general species account)