The Acanthizidae are a family of passerine birds which include gerygones, thornbills and scrubwrens. Description The Acanthizadae consists of small to medium-small passerine birds which can reach a length between 8 to 19 cm. They have short rounded wings and a rather short tail. Distribution The occurrence of the Acanthizidae is the Australasian region (Indonesia, Australia), New Zealand and the south-west Pacific. Taxonomy Following the Sibley-Ahlquist taxonomy (1990) they were previously rega… (More on Acanthizidae)