
Photo: Vihansith Kulatunga · CC BY-SA 4.0 (May be cropped or resized)
Halcyon smyrnensis
Habitat
Nest tunnel in an earth bank, about 50cm long
Clutch size
4–7 round white eggs
Incubation period
20–22 days
Size
27–28cm
The white-throated kingfisher is a large kingfisher, 27 to 28cm long. The nest is a tunnel, about 50cm long though one of three feet has been noted, in an earth bank, and a single clutch of four to seven round white eggs is typical. The eggs take 20 to 22 days to hatch and the chicks fledge in 19 days (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.