
Photo: Karim Haddad · CC BY 4.0 (May be cropped or resized)
Motacilla flava
Habitat
Nests in tussocks
Clutch size
4–8 speckled eggs
Size
15–16cm
The western yellow wagtail is a slender bird 15 to 16cm long, with the long, constantly wagging tail characteristic of the wagtails. It nests in tussocks, laying four to eight speckled eggs (Wikipedia, general species account).
That is all the source read for the Bhutan guide gives. No plumage, range or diet information was found, so none is stated, and its occurrence in Bhutan is flagged for checking.