The chowchilla (''Orthonyx spaldingii'') is a

passerine A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines are distinguished from other orders of birds by t ...

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

Orthonychidae The logrunners (''Orthonyx'') are a clade of birds which comprises three species of passerine birds endemic to Australia and New Guinea. Some authorities consider the Australian family Cinclosomatidae to be part of the Orthonychidae. The three ...

. 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

In their 1999 study,

Schodde Richard Schodde, OAM (born 23 September 1936) is an Australian botanist and ornithologist. Schodde studied at the University of Adelaide, where he received a BSc (Hons) in 1960 and a PhD in 1970. During the 1960s he was a botanist with the ...

and

Mason Mason may refer to: Occupations * Mason, brick mason, or bricklayer, a craftsman who lays bricks to construct brickwork, or who lays any combination of stones, bricks, cinder blocks, or similar pieces * Stone mason, a craftsman in the stone-cut ...

recognise two adjoining subspecies, ''O. s. spaldingii'' and ''O. s. melasmenus'' with a zone of intergradation.

Description

Unmistakable thrush-like, ground-dwelling, birds. Males and females largely dark brown with white eye-ring, tail-feather shafts extend as spines beyond feather-vanes; males with white throat, breast and belly; females with bright rufous throat and upper breast, white lower breast and belly.

Distribution and habitat

The chowchilla is restricted to upland and lowland

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...

s of north-eastern

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

Behaviour

Diet

Mainly invertebrates, but also small vertebrates.

Voice

Continuous chattering, singing and other complex vocalisations.

Breeding

Nests on or near ground, often on ferns, stumps or logs. Builds a bulky, dome-shaped stick-nest with a clutch of one, possibly sometimes two, white eggs.

Gallery

File:Chowchilla.jpg, left, Near Mount Lewis – Australia File:Chowchilla Orthonyx spaldingii (male).JPG, ''Orthonyx spaldingii'' (male)

References

* BirdLife International. (2007). Species factsheet: Orthonyx spaldingii. Downloaded fro

on 9 August 2007 * Higgins, P.J.; & Peter, J.M. (eds). (2003). ''Handbook of Australian, New Zealand and Antarctic Birds. Volume 6: Pardalotes to Shrike-thrushes''. Oxford University Press: Melbourne.

External links

Image at ADW
{{Taxonbar, from=Q1315452 Orthonyx Birds of Cape York Peninsula Endemic birds of Australia Birds described in 1868