Golden-headed Manakin
Ceratopipra erythrocephala
Like other manakins, the golden-headed manakin is a compact, brightly coloured forest bird, typically 3.7 in (9.4 cm) long and weighing 0.44 oz (12.5 g). The adult male is black apart from a golden cap, white and red thighs, pink legs and a yellowish bill. The female and young males are olive-green and resemble female white-bearded manakins, but are smaller, shorter-tailed and have pinkish (not bright orange) legs. Apart from the buzzing display song (see below), the golden-headed manakin has a number of other calls, including a buzzing pir pir prrrrrt.
ID text from Wikipedia, CC BY-SA 4.0

Red-headed Manakin
Ceratopipra rubrocapilla
The red-headed manakin is 10 to 10.5 cm (3.9 to 4.1 in) long and weighs about 11 to 17 g (0.39 to 0.60 oz). The species is sexually dimorphic and females are heavier than males. Adult males have an almost entirely red head and neck. Their thighs are also red. Their throat and the rest of their plumage are black. Adult females are mostly dull olive-green; their underparts are lighter than their back, especially on the belly. Both sexes have dull pinkish legs and feet. Males have a hazel-brown iris and a pale brownish bill; the female's iris and bill are darker. Voice: The male red-headed manakin's principal call is a somewhat variable "drree-dit, dree-dee-dew". It also makes a "sharp zit, zit" call and during the display flight "a series of kew notes".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Golden-headed Manakin and Red-headed Manakin.