Delta Amacuro Softtail

The Delta Amacuro softtail is about 17 cm (6.7 in) long and weighs 26 to 30 g (0.92 to 1.1 oz). The sexes have almost the same plumage. Adult males have olive-buff lores with dark gray tips and a grayish olive eyering; the rest of their head is brownish olive with yellow-buff spots. Their upper back is brownish olive with yellow-buff streaks. Their rest of their back is plain warm brown and their rump and uppertail coverts rufous-brown or cinnamon. Their tail is cinnamon that is brighter on its upper side. Their upperwing coverts are warm olive-brown to fulvous-brown. Voice: The Delta Amacuro softtail's song is often sung in duet. It is "a long chattery rattle consisting of short, loud notes given by one bird (perhaps male), then joined for variable period of time by a second bird making harsh, even shorter notes; after this, volume and tempo gradually decrease until song typically ends with only the first bird singing".