
Photo: JJ Harrison · CC BY-SA 3.0 (May be cropped or resized)
Napothera epilepidota
Habitat
Subtropical or tropical moist lowland and moist montane forest
Range
The eastern Himalayas throughout Southeast Asia
The eyebrowed wren-babbler is a member of the family Pellorneidae whose range extends from the eastern Himalayas throughout Southeast Asia. Its natural habitats are subtropical or tropical moist lowland forest and moist montane forest (Wikipedia, general species account).
That short account is the only source read for the Bhutan guide. It does not name Bhutan specifically, and gives no plumage, size, diet or breeding information, so none is stated.