Australian Warblers: Acanthizidae - Physical Characteristics

Australian warblers tend to be small- to medium-sized birds, with an average length of 3.5 to 10 inches (9 to 27 centimeters) and a weight range of 0.25 to 2.5 ounces (7 to 70 grams). Most of the species are olive-green, somewhat drab-colored birds, but with distinctive markings on the head and face, such as light eyebrows, spots, and streaks. Some species have yellow or reddish rumps. Some of the thornbills and gerygones have yellow undersides, while the pilotbird and rockwarbler have reddish brown underside. This family of birds has slender bills. The tails of some species are cocked, tilted, regularly. Males and females are similar in appearance.