Black-striped Woodcreeper
Xiphorhynchus lachrymosus
The black-striped woodcreeper is 21.5 to 25 cm (8.5 to 9.8 in) long and weighs 51 to 66 g (1.8 to 2.3 oz). It is a medium-sized member of genus Xiphorhynchus, with a longish, nearly straight, bill with a slight droop at the tip. The sexes have the same plumage. Adults of the nominate subspecies have a brownish black face with buff streaks and no distinct supercilium. Their crown and nape are brownish black with buffy teardrop spots and wide streaks. Their back and scapulars are also brownish black with wider and deeper buff streaks. Voice: The black-striped woodcreeper's song is "a soft, descending whinny...clear whistles that begin slowly, speed up, then slow at end, 'wi, di, di, di, di-di-di-di-di-di, di, di, dew'.
ID text from Wikipedia, CC BY-SA 4.0
Olive-backed Woodcreeper
Xiphorhynchus triangularis
The olive-backed woodcreeper is 19.5 to 25 cm (7.7 to 9.8 in) long, males weigh 40 to 52 g (1.4 to 1.8 oz) and females 32 to 48 g (1.1 to 1.7 oz). It is a medium-sized member of genus Xiphorhynchus, with a slightly decurved bill. The sexes have the same plumage. Adults of the nominate subspecies X. t. triangularis have a finely streaked face with a buffy supercilium and eyering. Their crown and nape are blackish brown with pale buff elongated spots. Their back, wing coverts, and rump are bright olive to brownish olive. Their upper back has scattered buff streaks. Voice: The olive-backed woodcreeper appears to be less vocal than many others of its genus. Its song is "a series of hard notes that accelerates then slows, 'we we we-we-we-we-we-WE-WE-We-we-wa' ". It also has a fainter song, "a weak and somewhat nasal series that accelerates into a slow trill, 'quee, quee QUEE-que-que'e'e'e'e'.
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: Black-striped Woodcreeper and Olive-backed Woodcreeper.