Golden-green Woodpecker
Piculus chrysochloros
The golden-green woodpecker is 18 to 27 cm (7.1 to 11 in) long and weighs 55 to 91 g (1.9 to 3.2 oz). Males and females have the same plumage except on their heads. Males of the nominate subspecies P. c. chrysochloros are red from forehead to nape, have olive green from the lores around the eye and onto the side of the neck, and successively a pale yellow stripe, a short red malar band, and an olive green stripe below that area. Their chin and upper throat are yellow. The nominate female has no red on its head; its forehead to nape are olive and it has an olive-brown malar area. Voice: The golden-green woodpecker's song is a "series of 15 almost toneless, hoarse 'schraah' notes, sounding like a hysterically crying baby."
ID text from Wikipedia, CC BY-SA 4.0
Rufous-winged Woodpecker
Piculus simplex
The rufous-winged woodpecker is about 18 cm (7.1 in) long and weighs 51 to 55 g (1.8 to 1.9 oz). Males and females have the same plumage except on their heads. Males are red from forehead to hindneck and very widely on the malar (cheek); the rest of its face is brownish green. The female's head is mostly brownish olive with red only on the nape and hindneck. Adults of both sexes have bronze-green upperparts. Their flight feathers are mostly cinnamon-rufous with much dark olive on the webs. Their tail is blackish with a hint of cinnamon-rufous on the outer feathers.
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-green Woodpecker and Rufous-winged Woodpecker.