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 generally have an anisodactyl arrangement of their ...

bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...

in the family

Orthonychidae Orthonychidae is a clade of passerine birds Endemic (ecology), endemic to Australia and New Guinea. It encompasses the genus ''Orthonyx'', including the logrunners and the chowdilla. Some authorities consider the Australian family Cinclosomatida ...

. It is

endemic Endemism is the state of a species being found only 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 foun ...

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

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 CSI ...

and Mason 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, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...

s of north-eastern

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

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 left, female right).JPG, Male (left). female (right)

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 Queensland Birds described in 1868