Voice
A prolonged series of barbet-like whistles, 'hoop hoop hoop wup-wup-wup pupupupupu' and a quavering trill, increasing steadily in volume, 'wu u u u u u u u'. Also various squawks, barks and churrs.
Asian Barred Owlet (Glaucidium cuculoides) [XC820686]
by Geoff Carey from , Thailand (song)
Asian Barred Owlet (Glaucidium cuculoides) [XC711014]
by Jelle Scharringa from Nahm Dong park, Ban Xiang, Luang Prabang, Laos (song)
Subspecies
Possibly forms superspecies with Javan Owlet (Glaucidium castanopterum). Sometimes considered to include Javan Owlet (Glaucidium castanopterum) and Chestnut-backed Owlet (Glaucidium castanotum) as subspecies.
The following 8 subspecies are recognised:
cuculoides (Vigors, 1831) - Himalayas from north-eastern Pakistan and Kashmir east to western Sikkim.