Scribble-tailed Canastero

The scribble-tailed canastero is about 17 cm (6.7 in) long and weighs about 19 g (0.67 oz). It is a large canastero with a unique pattern on its long tail's pointed feathers. The sexes have the same plumage. Adults have a faint pale supercilium and a dark brown stripe behind the eye on an otherwise buffy face. Their forehead is rufous that blends to a blackish brown crown with rufescent buff streaks. Their hindcrown and nape are dark brown with buff streaks and their back and rump are also dark brown but with wider buff streaks. Voice: The scribble-tailed canastero's song is "a series of 'tree' notes that end in fast, descending trill". Its call is "a rising whistled 'tuuuiit' or 'tooeee' ".