The chestnut-breasted malkoha (''Phaenicophaeus curvirostris'') is a species of

cuckoo Cuckoos are birds in the Cuculidae ( ) family, the sole taxon in the order Cuculiformes ( ). The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals, and anis. The coucals and anis are somet ...

in the family

Cuculidae Cuckoos are birds in the Cuculidae ( ) family, the sole taxon in the order Cuculiformes ( ). The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals, and anis. The coucals and anis are someti ...

. Found in Southeast Asia from Myanmar through to eastern Java, the Philippines and Borneo, it is a large cuckoo measuring up to 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.Payne, p. 297

Taxonomy

The chestnut-breasted malkoha was first described from a specimen collected in western

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

by English naturalist George Shaw in 1810 as ''Cuculus curvirostris'', before the genus ''

Phaenicophaeus ''Phaenicophaeus'' is a genus of seven species of cuckoos in the family Cuculidae that are found in South and Southeast Asia. Taxonomy The genus ''Phaenicophaeus'' was introduced in 1815 by the English naturalist James Francis Stephens. He incl ...

'' was erected by English naturalist

James Francis Stephens James Francis Stephens (16 September 1792 – 22 December 1852) was an England, English entomologist and naturalist. He is known for his 12 volume ''Illustrations of British Entomology'' (1846) and the ''Manual of British Beetles'' (1839). ...

in 1815. Its specific epithet is derived from the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

words ''curvus'' "curved", and ''rostrum'' "beak". The genus name is derived from the

ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...

''phoiniko-'' "crimson", and ' "eyes" or "face", referring to the

red-faced malkoha The red-faced malkoha (''Phaenicophaeus pyrrhocephalus'') is a member of the cuckoo order of birds, the Cuculiformes. This malkoha species is endemic to Sri Lanka Description This is a large species at 46 cm with a long graduated tail. I ...

. However, the 'œ' was transcribed incorrectly as 'æ'.

Subspecies

Five

subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...

are recognised: *''P. c. singularis'': from southern Myanmar and Thailand, through the Malay Peninsula and into

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

, as well as the Anambas archipelago. *''P. c. curvirostris'': from central and western Java. *''P. c. deningeri'': from eastern Java and

Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...

. *''P. c. microrhinus'': from

Bangka Island Bangka is an island lying east of Sumatra, Indonesia. It is administered under the province of the Bangka Belitung Islands, being one of its namesakes alongside the smaller island of Belitung across the Gaspar Strait. The 9th largest island in ...

and

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

. *''P. c. harringtoni'': from

Palawan Palawan (, ), officially the Province of Palawan (; ), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in terms of total area of . The capital and largest c ...

Balabac Balabac Island is the southernmost island of Palawan province, and therefore the westernmost undisputed island in the Philippines, some north of Sabah, Malaysia, across the Balabac Strait. Administratively, the island forms the main part of th ...

, Calamian and

Dumaran Dumaran, officially the Municipality of Dumaran (), is a municipality A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by natio ...

islands of the

province of the western Philippines. The Mentawai malkoha (''Phaenicophaeus oeneicaudus'') was formerly considered as a subspecies. It was promoted to species status based on the significant morphological differences.

Description

Measuring 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.

Distribution and habitat

It is found in

Brunei Brunei, officially Brunei Darussalam, is a country in Southeast Asia, situated on the northern coast of the island of Borneo. Apart from its coastline on the South China Sea, it is completely surrounded by the Malaysian state of Sarawak, with ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

, the western

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

, and southern

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

. Its natural

habitat In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...

s are subtropical or tropical moist lowland

forest A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...

s and subtropical or tropical mangrove forests. It resides mainly in the middle story in dense foliage. Much of its forest habitat is being cleared.

Feeding

It eats small vertebrates, such as small lizards, frogs, and baby birds, and insects, including caterpillars, grasshoppers, cicadas, stick insects, mantises, cockroaches, beetles, and bugs, as well as spiders and small crabs.

Breeding

Unlike many cuckoos, the chestnut-breasted malkoha builds its nest and raises its own young. Breeding season varies by location, from August to December in Borneo, to January to September in Southeast Asia. The male and female pair up and build a nest around diameter of small branches and twigs, with a leaf-lined depression or cup around in diameter and deep. Two or three matte white eggs measuring 34 x 28 mm are laid. Both the female and male incubate the eggs, which usually hatch around 13 days after being laid. Young birds remain in the nest for around 11 days, during which time they are fed by both parents.

References

{{Taxonbar, from=Q2017168 chestnut-breasted malkoha Birds of Malesia chestnut-breasted malkoha Taxonomy articles created by Polbot