Green-and-black Fruiteater

The green-and-black fruiteater is 17.5 to 20 cm (6.9 to 7.9 in) long and weighs 46 to 61 g (1.6 to 2.2 oz). The sexes have different plumage. Adult males of the nominate subspecies P. r. riefferii have an entirely blackish green head and upper breast with a yellow band ("collar") around its base except on the nape. Their upperparts and tail are green and the wings mostly that color; the wing's tertials have white tips. Their underparts are yellow with black streaks that are heavier on the flanks than in the center. Females have a green head instead of the male's black and no yellow collar. Voice: The song of most subspecies of the green-and-black fruiteater has variously been written as "tic-tic-ti-ti-ti-tiseeeeeeeeeeeeaa" and "ts-s-s-s-s-s-se-eeeeeeeeuuw". Their call is a "ery high-pitched, sibilant ti-ti-ti-ti for up to 5 seconds, dying away". Subspecies P. r. tallmanorum's call is different, "ti-ti-ti-seeee" with a thin, high-pitched last note.