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Orthonychidae
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Orthonychidae
Orthonychidae is a clade of passerine birds endemic to Australia and New Guinea. It encompasses the genus Orthonyx, (from Ancient Greek ὀρθός (orthós), meaning "straight", and ὄνυξ (ónux), meaning "claw") including the logrunners and the chowchilla. Some authorities consider the Australian family Cinclosomatidae to be part of the Orthonychidae. The three species use their stiffened tails to brace themselves when feeding.