The chestnut-backed buttonquail (''Turnix castanotus'') is a species of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...

in the family

Turnicidae Buttonquail or hemipodes are members of a small family of birds, Turnicidae, which resemble, but are unrelated to, the quails of Phasianidae. They inhabit warm grasslands in Asia, Africa, Europe, and Australia. There are 18 species in two genera ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Taxonomy

John Gould John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, ...

described the species in 1840, from a specimen collected by Benjamin Bynoe, ship's surgeon of , from northwestern Australia, as ''Hemipodius castanotus''. English zoologist George Gray placed it in the genus ''

Turnix Pierre Joseph Bonnaterre Abbé Pierre Joseph Bonnaterre (1752, Aveyron – 20 September 1804, Saint-Geniez-d'Olt) was a French zoologist who contributed sections on cetaceans, mammals, birds, reptiles, amphibians, fish, and insects to th ...

'' in 1870.

William Robert Ogilvie-Grant William Robert Ogilvie-Grant (25 March 1863 – 26 July 1924) was a Scottish ornithologist. Early life and education Grant born on 25 March 1863 as second son of Capt. Hon. George Henry Essex Ogilvie-Grant, of Easter Elchies, Craigellachie, Sco ...

corrected the name to ''Turnix castanonota'' in 1889. Three subspecies were described by Gregory Mathews, but all are now considered as invalid and merely individual variants.

Etymology

"Chestnut-backed buttonquail" has been designated the official name by the

International Ornithologists' Union The International Ornithologists' Union, formerly known as the International Ornithological Committee, is a group of about 200 international ornithologists, and is responsible for the International Ornithological Congress and other international ...

(IOC). The species name is derived from the

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

words ''kastanon'' "chestnut" and ''noton'' "back". Gould called it "chestnut-backed hemipode" in 1848, noting the colonists called it "thick-billed quail". The buttonquail species were generally known as "quail" (hence "chestnut-backed quail" ) until the RAOU promoted the current usage of "buttonquail" in 1978, which was then universally adopted.

Distribution and habitat

Native to northern Australia, the species ranges from the

Dampier Peninsula The Dampier Peninsula is a peninsula located north of Broome and Roebuck Bay in Western Australia. It is surrounded by the Indian Ocean to the west and north, and King Sound to the east. It is named after the mariner and explorer William Damp ...

in Western Australia across to Westmoreland Station in the Gulf Country of northwestern Queensland, with possible records from Gregory Downs and Augustus Downs further east. It is also native to Melville Island and

Groote Eylandt Groote Eylandt ( Anindilyakwa: ''Ayangkidarrba'' meaning "island" ) is the largest island in the Gulf of Carpentaria and the fourth largest island in Australia. It was named by the explorer Abel Tasman in 1644 and is Dutch for "Large Island" i ...

. It was common around Borroloola and

McArthur River The McArthur River is a river in the Northern Territory of Australia which flows into the Gulf of Carpentaria at Port McArthur, opposite the Sir Edward Pellew Group of Islands. The river was named by Ludwig Leichhardt while he explored the are ...

, but not currently. Its existence in Queensland was only confirmed in 2020. Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and 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 ...

s are low grasslands and ''

Eucalyptus ''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corymbia'', they are commonly known as euca ...

'' forests and woodland, favouring quartzite-sandstone ridges, plateaus and escarpments, mostly (but not always) in areas that receive over summer rainfall.

Behaviour

The usual sex roles are reversed in the buttonquail genus (''

''), as the larger and more brightly-coloured female mates with multiple male partners and leaves them to incubate the eggs. The female lays a clutch of 1–5 (usually 4) pyriform eggs, which are glossy-white with sparse small dark blotches.

References

{{Taxonbar, from=Q1270026 Birds of the Northern Territory Birds of Queensland Birds of Western Australia Turnix Birds described in 1840 Taxa named by John Gould