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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Orthonychidae
Genus: Orthonyx (in part)


The logrunners are two species of birds in the family Orthonychidae. They were previously considered conspecific, but as they differ significantly, they are now generally considered separate species. The family Orthonychidae also contains a third species, the chowchilla (Orthonyx spaldingii).


Logrunners are 17–20 cm. in length. The bulky chowchilla is much larger, at 26–28 cm.[1] Chowchillas are dark brown above, with a black head and a blue-gray eye ring. Logrunners are patterned olive, gray, and mottled black. All males have a white throat, while females have a rufous throat and upper breast.


Australian logrunner lives in the humid lowland forest along the eastern coast of Australia. Papuan logrunner is found in Indonesia and Pupua New Guinea's tropical montane forests. Chowchillas live in the rain forests of northeastern Queensland.



  1. ^ Harris, Tim (2009). National Geographic Complete Birds of the World. Washington DC: National Geographic. p. 234. ISBN 978-1-4262-0403-6. 
  • Del Hoyo, J.; Elliot, A. & Christie D. (editors). (2006). Handbook of the Birds of the World. Volume 12: Picathartes to Tits and Chickadees. Lynx Edicions. ISBN 978-84-96553-42-2