Spot-backed Antbird

The spot-backed antbird is 10.5 to 11.5 cm (4.1 to 4.5 in) long and weighs 11 to 14 g (0.39 to 0.49 oz). Adult males of the nominate subspecies H. n. naevius have a dark yellowish brown crown and nape. Their upperparts are mostly dark yellowish brown; the center of their back is black with pale buff spots and they have a white patch between their scapulars. Their flight feathers are dark brown with black bases and their wing coverts black with wide white to pale buff tips. Their tail is dark reddish yellow-brown with white to pale buff tips and a black band above the tips. Voice: The spot-backed antbird's song varies among the subspecies; it is generally "a long series of doublets". In Ecuador it is described as "a fast, high-pitched, and somewhat wheezy 'wur, weépur-weépur-weépur-weépur-weépur-weépur-weépur-weépur'...loudest in the middle and fading at end". In Brazil, where several subspecies are found, it is "ery/extr.