
Photo: (c) Subir B. Shakya, some rights reserved (CC BY) · CC-BY (May be cropped or resized)
Riparia chinensis
Habitat
Open habitats such as farmland, grassland and savannah, usually near water
Range
Tajikistan, Afghanistan and the Indian subcontinent to southern China, Taiwan and the northern Philippines
The grey-throated martin, or Asian plain martin, is a small member of the swallow family found in open habitats such as farmland, grassland and savannah, usually near water. It ranges from Tajikistan, Afghanistan and the Indian subcontinent to southern China, Taiwan and the northern Philippines (Wikipedia, general species account).
It was formerly considered a subspecies of the plain martin, since renamed the brown-throated martin. The source read gives no plumage, size, diet or breeding information, and does not name Bhutan, so none is stated.