Hodgson's Hawk-Cuckoo (Hierococcyx nisicolor) [XC20568]
by Peter Ericsson from Tam Dao, Vietnam (call?)
Hodgson's Hawk-Cuckoo (Hierococcyx nisicolor) [XC742013]
by Teus Luijendijk from Hong Kong, Kadoorie Farm and Botanic Garden, Tai Po District, New Territories, China (call)
Subspecies
Often placed in genus Hierococcyx, along with other hawk-cuckoos, on grounds of notable morphological differences from Cuculus.
Not recognised as a species by BirdLife International. Considered a subspecies of Malay Hawk-cuckoo (Hierococcyx fugax).
Considered by some authors to be a subspecies of Malay Hawk-cuckoo (Hierococcyx fugax).