The Yellow-bellied Flyrobin (Microeca flaviventris) is a species of bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 in the Australasian robin family Petroicidae

Petroicidae

The bird family Petroicidae includes roughly 45 species in about 15 genera. All are endemic to Australasia: New Guinea, Australia, New Zealand and numerous Pacific Islands as far east as Samoa. For want of an accurate common name, the family is often called the Australasian robins. Within the...

. It is endemic to New Caledonia

New Caledonia

New Caledonia is a special collectivity of France located in the southwest Pacific Ocean, east of Australia and about from Metropolitan France. The archipelago, part of the Melanesia subregion, includes the main island of Grande Terre, the Loyalty Islands, the Belep archipelago, the Isle of...

, where it occurs on the island of Grande Terre. It occupies a range of habitats, including dry lowlands woodland, Pinus and Pandanus

Pandanus

Pandanus is a genus of monocots with about 600 known species. They are numerous palmlike dioecious trees and shrubs native of the Old World tropics and subtropics. They are classified in the order Pandanales, family Pandanaceae.-Overview:...

forest and humid forest from sea level up to 1525 m.

Originally described by ornithologist Richard Bowdler Sharpe

Richard Bowdler Sharpe

Richard Bowdler Sharpe was an English zoologist.-Biography:Sharpe was born in London and studied at Brighton College, The King's School, Peterborough and Loughborough Grammar School. At the age of sixteen he went to work for Smith & Sons in London...

 in 1903, it was long considered one of the yellow robins of the genus Eopsaltria

Eopsaltria

Eopsaltria is a genus of small forest passerines known in Australia as the Yellow Robins. They belong to the Australasian Robin family Petroicidae. The name is derived from the Ancient Greek for "dawn singer/song" because of their dawn chorus. They are inquisitive and bold birds, and have been...

. However, genetic study showed it is nested within the flyrobin genus Microeca

Microeca

Microeca is a genus of bird in the Petroicidae family.It contains the following species:* Jacky-winter * Lemon-bellied Flyrobin * Yellow-bellied Flyrobin...

, and hence its name has been changed from Yellow-bellied Robin to Yellow-bellied Flyrobin by the IOC.

The Yellow-bellied Robin is a medium-sized Australasian robin, 14–15 cm in length and weighing around 12 g

Gram

The gram is a metric system unit of mass....

. The plumage

Plumage

Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a...

 is similar to others in the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Eopsaltria

Eopsaltria

Eopsaltria is a genus of small forest passerines known in Australia as the Yellow Robins. They belong to the Australasian Robin family Petroicidae. The name is derived from the Ancient Greek for "dawn singer/song" because of their dawn chorus. They are inquisitive and bold birds, and have been...

; dark olive-grey back, tail and wings, grey head and chest with a slightly lighter throat, and yellow belly and rump. The legs are grey.