Blue-tailed Bee-eater

The blue-tailed bee-eater is around 29cm long excluding the elongated central tail feathers, which add another 7cm, and weighs about 29 to 43g. About five to seven near-spherical eggs are laid, and both the male and the female take care of them. One or two helpers may join the breeding pair after incubation begins (Wikipedia, general species account).

The only source read for the Bhutan guide gives these details. No plumage, range, habitat or diet information was found, so none is stated, and its occurrence in Bhutan is flagged for checking.