Chotoy Spinetail

The chotoy spinetail is 20 to 22 cm (7.9 to 8.7 in) long and weighs 15 to 22.5 g (0.53 to 0.79 oz). It is a large spinetail with a unique throat pattern. The sexes have the same plumage. Adults of the nominate subspecies have a white supercilium and light brown ear coverts. Their forehead is dark brown, their crown chestnut with faint brown streaks, their back sandy brown with obvious dark brown streaks, and their lower back, rump, and uppertail coverts light brown. Their wings are mostly light brown with a chestnut shoulder. Their tail is long and light brown with blackish feather shafts. Voice: The chotoy spinetail's song is "a distinctive series of low-pitched "cho" notes" that sound like they come from a larger bird. It has been rendered as "rrrrtooo chicheetitichichicheecheychachochoochew". Its call is a "hurried 'sreepsreeptrrit' ".