
Photo: Vijay Vanaparthy · CC BY 4.0 (May be cropped or resized)
Dinopium benghalense
Habitat
Mainly plains up to about 1,200m; nests in an unlined cavity
Range
Pakistan, India south of the Himalayas east to western Assam and Meghalaya, Bangladesh and Sri Lanka
Clutch size
Normally 3 elongate, glossy white eggs
Size
26–29cm
The black-rumped flameback is a large woodpecker, 26 to 29cm long. It is found mainly on the plains, going up to about 1,200m, in Pakistan, India south of the Himalayas east to the western Assam valley and Meghalaya, Bangladesh and Sri Lanka. The eggs are laid inside an unlined cavity, and the normal clutch is three elongate, glossy white eggs (Wikipedia, general species account).
The only source read for the Bhutan guide gives these details. It does not name Bhutan, and gives no plumage, diet or voice information, so none is stated, and the species' occurrence there is flagged for checking.