Lesser Woodcreeper
Xiphorhynchus fuscus
The striped woodcreeper is a small, slim member of its genus, with a longish, slim, slightly decurved bill. The species is 15 to 18.5 cm (5.9 to 7.3 in) long and weighs 15.5 to 25 g (0.55 to 0.88 oz). The sexes have the same plumage. Adults of the nominate subspecies have a mostly dusky face with a wide creamy to yellowish buff supercilium and often a pale eyering. Their crown and nape are blackish brown with small yellowish buff to cinnamon spots on the crown. The spots become streaks on the nape and sides of the neck and weakly continue onto the upper back. Voice: The lesser woodcreeper's song is a "fast, sharp rattle, stuttered at end"; the nominate subspecies' song also stutters at the beginning. It has been put into words as "chit, chit, chit, chee-ee-ee-ee-ee-ee-ee, chit, chit-chit." Its calls include a "very high, sharp 'fieet fieet' " and "doubled 'peep, peesp' and single 'speel' or 'wik' ".
ID text from Wikipedia, CC BY-SA 4.0
Spotted Woodcreeper
Xiphorhynchus erythropygius
The spotted woodcreeper is 19 to 24 cm (7.5 to 9.4 in) long. Males weigh 40 to 54 g (1.4 to 1.9 oz) and females 40 to 46 g (1.4 to 1.6 oz). It is a medium-sized member of genus Xiphorhynchus, with a longish, slightly decurved and gradually tapering bill. The sexes have the same plumage. Adults of the nominate subspecies X. e. erythropygius have dusky lores, a buff supercilium and eyering, and dusky olive ear coverts with buff streaks. Their crown and nape are dark olive to brownish olive with small buff spots and a narrow dusky edge. Voice: The spotted woodcreeper is rather vocal. It mostly sings at dawn and dusk and less frequently during the day. Its song is "a series 4–6·5 seconds long of 2–5 (usually 3–4) long descending whistles, each at progressively lower pitch, and sometimes followed by 1–2 additional notes at same pitch".
ID text from Wikipedia, CC BY-SA 4.0

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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Lesser Woodcreeper and Spotted Woodcreeper.