White-browed Wagtail

The white-browed, or large pied, wagtail is the largest wagtail, 21 cm long. It is conspicuously patterned, black above and white below, with a prominent white brow, shoulder stripe and outer tail feathers and the long, constantly wagging tail of its genus. The upperparts, head and breast are black with a white supercilium and large white wingbar. The specific name is derived from Madras, now Chennai (Wikipedia, general species account).

It is usually seen in pairs or small groups near open water; the song is long and loud with many notes, and the usual call is a wheezy wheech (Wikipedia, general species account).