ウグイストゲハシムシクイ Acanthiza reguloides

Small bird with thin pointed bill. Upperparts grayish brown towards southern end of range and more olive-brown farther north. Underparts are varying levels of yellow depending on subspecies. Distinctive orange-brown rump in all subspecies, some also with and orange-brown tone in lores. Pale eye. Inhabits open habitats, particularly eucalypt forests and other woodlands, where it feeds in small flocks in bushes and branches of trees.