Eastern Yellow Wagtail
Motacilla tschutschensis
It is a slender 15–16 cm long bird, with the characteristic long, constantly wagging tail of its genus. The breeding adult male is basically olive-green above and yellow below. In other plumages, particularly first-winter birds but also many females, the yellow may be diluted by white. The heads of breeding males come in a variety of colours and patterns depending on subspecies.
ID text from Wikipedia, CC BY-SA 4.0
White-browed Wagtail
Motacilla maderaspatensis
The white-browed wagtail is the largest species of wagtail at 21 cm (8.3 in) length. It is a slender bird, with the characteristic long, constantly wagging tail of its genus. It has black upperparts, head and breast, with a white supercilium and large white wingbar. Unlike white wagtails it never has white on the forehead. The rest of the underparts are white. The female has the black less intense than in the male. Juveniles are like the females brown-grey where the adult is black.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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