The chestnut-breasted malkoha (Phaenicophaeus curvirostris) is a species of cuckoo in the family Cuculidae. Found in Southeast Asia from Myanmar through to eastern Java, the Philippines and Borneo, it is a large cuckoo measuring up to 49 cm (19 in) with grey and dark green upperparts and chestnut underparts, and a large curved pale upper mandible. The male and female are similar in plumage. Unlike many cuckoos, it builds its nest and raises its own young.

Measuring 42–49 cm (17–19 in) in length, the chestnut-breasted malkoha has a large, curved, pale yellow upper mandible and darker red or black lower mandible, and a bare red patch of rough skin around the eye. The head is grey and wings are dark green fading to blue with age. Its underparts and rump are chestnut, and feet are dark grey. Little sexual dimorphism is seen, as the male and female are similar in plumage, although the male has a pale blue iris and the female yellow.

Taken with a Sony A7IV and Sigma 150-600mm f/5-6.3 DG DN OS Sports Lens