King Quail (Synoicus chinensis)

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Image of a King quail
Birds Quail

Introduction

The King Quail (Synoicus chinensis) is a very small ground-dwelling quail of the family Phasianidae. It is also known as the Blue-breasted Quail, Asian Blue Quail and Chinese Painted Quail. The name Button Quail is sometimes used in aviculture, although true buttonquails belong to the unrelated family Turnicidae. The species is native from the Indian subcontinent and southern China through mainland Southeast Asia, the Philippines, Indonesia and New Guinea, as well as parts of northern and eastern Australia.

Physical Description

King Quails measure approximately 12.5–14 cm in length. Australian adults weigh about 30.5–48 g, with males generally weighing 34.5–48 g and females 30.5–41.8 g. They have rounded wings, a short tail, compact bodies, dark bills and orange-yellow legs and feet.

Adult males are strongly patterned. They usually have a slate-blue or blue-grey breast, chestnut to reddish-brown underparts, and a black-and-white facial and throat pattern. Adult females are more subdued, with predominantly brown plumage, fine barring and warm rufous tones that provide camouflage in grass and wetland vegetation. Females may be slightly heavier than males.

Young birds resemble females more closely than adult males. Full adult male plumage is not normally attained until the beginning of the second year, while females may acquire adult plumage earlier. Captive breeding has produced colour varieties such as silver, white and pied, but these forms are not representative of the species’ wild appearance.

Range and Habitat

The King Quail has a broad but discontinuous range extending from India, Sri Lanka and southern China through Southeast Asia, the Philippines, Indonesia and New Guinea. In Australia, it occurs mainly in the north and east, including Queensland, New South Wales, the Northern Territory and parts of north-western Western Australia. Australian populations include geographically distinctive forms, including S. c. victoriae in eastern Australia and S. c. colletti in the Northern Territory and north-eastern Western Australia.

It favours moist grassland, rank grass, marsh edges, floodplain vegetation, wet open woodland and, in parts of its Asian range, rice fields and other damp agricultural habitats. Dense, low vegetation provides food, nesting cover and protection from predators. The species has been recorded at elevations of up to about 1,220 m in Borneo.

King Quails are resident in much of their range, although local movements may occur in response to rainfall, vegetation growth and food availability. Their distribution and abundance can be difficult to assess because they are secretive and spend much of their time concealed in cover.

Behaviour and Diet

King Quails spend most of their time walking or crouching through dense vegetation. They may occur singly, in pairs or in small coveys. They are reluctant to fly and are often detected by their calls before they are seen. When flushed, they can make a rapid, low flight over a short distance before returning to cover.

Their diet consists mainly of grass seeds, other small seeds, fresh plant material and small invertebrates such as insects, termites and worms. This mixture makes them omnivorous, although plant material and seeds form an important part of their diet.

Breeding is generally associated with the rainy season, with timing varying across the range. The female makes a shallow, grass-lined nest on the ground and usually lays between 6 and 14 eggs, although larger clutches have been reported. Incubation takes approximately 16–19 days and is performed by the female. The chicks are precocial, leaving the nest soon after hatching and feeding themselves while remaining under the protection of the hen.

King Quails communicate with a variety of soft calls, peeps, clucks and more distinctive crowing notes. Males may display by puffing out the breast, lowering the wings and moving rapidly in front of a female. Dust-bathing is also part of their normal maintenance behaviour.

Identification Tips

  • Look for a very small, compact quail moving through thick grass or marsh-edge vegetation.
  • Adult males are distinctive for their blue-grey breast, chestnut underparts and black-and-white face and throat markings.
  • Females are mainly brown and can be difficult to separate from other small quails without a clear view.
  • Orange-yellow legs, a short dark tail and a crouched posture are useful supporting features.
  • The species is more often heard than seen and may remain motionless or crouch tightly when approached.
  • A flushed bird usually flies low and briefly, rather than rising into sustained, powerful flight.

In Australia, care is needed to distinguish King Quails from Brown Quails, which are larger and generally browner overall. The unrelated Australian buttonquails of the genus Turnix may also be confused with King Quails, particularly when seen briefly on the ground, but they differ in shape, plumage and taxonomy.

Conservation Status

The King Quail is currently classified as Least Concern on the IUCN Red List. Its broad geographic range and presence across many habitats support this global assessment, although reliable population estimates and regional trends are not available for all parts of its range.

The main potential pressures are the loss, drainage or degradation of moist grassland, marsh margins and other dense ground cover. Agricultural intensification, overgrazing, changes to floodplain vegetation and urban development may affect local populations. Because the species is difficult to survey, local declines can be overlooked.

The species is common in aviculture, where selective breeding has produced several colour forms. Captive birds should not be released into the wild, both because released birds may not be suited to local conditions and because uncontrolled releases can create disease, genetic and ecological risks. Protecting wet grassland, retaining dense native ground cover and improving monitoring are appropriate conservation measures.

Frequently Asked Questions

Where does the King Quail live?

The King Quail occurs from the Indian subcontinent and southern China through Southeast Asia, the Philippines, Indonesia and New Guinea, and into northern and eastern Australia. It usually lives in moist grassland, marsh margins, floodplains, wet open woodland and similar habitats with dense ground cover.

How large is a King Quail?

It is approximately 12.5–14 cm long. Australian adults weigh about 30.5–48 g, making the King Quail one of the smallest true quails commonly encountered in aviculture and the wild.

How can you tell a male King Quail from a female?

The adult male has a blue-grey breast, chestnut underparts and bold black-and-white facial and throat markings. The female is mainly brown and barred, with more subdued plumage that provides camouflage in grassland.

What does the King Quail eat?

Its diet includes grass seeds and other small seeds, green plant material, insects, termites and small worms. The balance varies with habitat and seasonal food availability.

Does the King Quail migrate?

The King Quail is generally resident rather than a long-distance migrant. Local movements may occur when rainfall, vegetation or food conditions change, but regular long-distance migration is not a defining feature of the species.

Is the King Quail endangered?

No. The species is currently assessed as Least Concern globally by the IUCN. Local populations may nevertheless be affected by the loss or degradation of moist grassland, marshes and dense ground cover.

References

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