Red-stained Woodpecker
Veniliornis affinis
The red-stained woodpecker is about 15 to 18 cm (5.9 to 7.1 in) long and weighs 32 to 44 g (1.1 to 1.6 oz). Males and females have the same plumage except on their heads. Males of the nominate subspecies affinis have a red crown with black feather bases that show through. The female has a dark olive-brown crown. Adults of both sexes have a mostly buffish face with olive streaks and a golden-yellow nape and hindneck. Their upperparts are mostly yellowish green with some red feather tips, pale yellow streaks, and some barring on the rump and uppertail coverts. Voice: The red-stained woodpecker is not highly vocal. Its primary vocalization is a "eries of up to c. 10–14 high-pitched nasal 'ghi' or 'kih' notes".
ID text from Wikipedia, CC BY-SA 4.0
Yellow-vented Woodpecker
Veniliornis dignus
The yellow-vented woodpecker is 16 to 17 cm (6.3 to 6.7 in) long and weighs 35 to 46 g (1.2 to 1.6 oz). Males and females have the same plumage except on their heads. Adults of both sexes of the nominate subspecies have a mostly blackish olive face with white stripes behind and below the eye. Males are red from forehead to nape with black feather bases showing through. The female is entirely blackish there. Both sexes' mantle and back are yellow-green with a bronze tinge; their rump and uppertail coverts are barred with light and dark olive. Their flight feathers are brownish olive. Voice: The yellow-vented woodpecker is not very vocal, but does make "a fast, rattled 'krrrrrrrrrrrrrrr'."
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: Red-stained Woodpecker and Yellow-vented Woodpecker.