The shy heathwren (Hylacola cauta) is a species of small bird in the Acanthizidae family, endemic to Australia. They inhabit mostly mallee woodland that has relatively dense shrub and heath understorey. Shy heathwrens feed mostly on ground dwelling insects; rarely on seeds. Their ground level nests are dome-shaped and usually concealed within grass tussocks or shrubs. Within the nest they typically lay 2-3 freckled and pinkish eggs. Their taxonomic name was formerly Calamanthus cautus—classing them as fieldwrens— until they were renamed in 2008.