The green-billed malkoha (Phaenicophaeus tristis) is a species of non-parasitic cuckoo found throughout Indian Subcontinent and Southeast Asia. The birds are waxy bluish black with a long graduated tail with white tips to the tail feathers. The bill is prominent and curved. These birds are found in dry scrub and thin forests.
Green-billed malkoha is about 50–60 cm cm long and weighs 100–128 g. It often has a clear white boarder to the red face patch salty grey on the face and neck. Adult green-billed malkoha has dark grey with green gloss above, oily green wings.