Montane Woodcreeper
Lepidocolaptes lacrymiger
The montane woodcreeper is 19 to 19.5 cm (7.5 to 7.7 in) long; males weigh 31 to 35 g (1.1 to 1.2 oz) and females 29.5 to 33 g (1.0 to 1.2 oz). It is a smallish to medium-sized woodcreeper with a slim, slightly decurved bill. The sexes have the same plumage. Adults of the nominate subspecies L. l. lacrymiger have a markedly streaked face and neck with a whitish supercilium that is often broken. Their crown and nape are dusky brown with conspicuous whitish buff spots with black tips; the spots become streaks on the nape. Voice: The montane woodcreeper is not highly vocal. Its song is "a 2·5 second series of 10–15 high-pitched whistles that accelerates and descends: 'tsip, tsip, tsip, ts-ts-tseeeéu, tseeu, tseu-tseu-tseu-tseu' or 'tseu, tseu, tsip-tsip, tsee-tsee-tsee-tsee-tsee' ". It also makes a "series of 3 reedy squeaks", a "double-noted cry", and a "rattle with introductory 'ah' ".
ID text from Wikipedia, CC BY-SA 4.0
Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
The narrow-billed woodcreeper is 18 to 22 cm (7.1 to 8.7 in) long; males weigh 23 to 37.5 g (0.81 to 1.3 oz) and females 21.5 to 33.5 g (0.76 to 1.2 oz). It is a slim, medium-sized woodcreeper with a long, slim, moderately decurved bill. The sexes have the same plumage. Adults of the nominate subspecies L. a. angustirostris have pale lores, a buffy white supercilium that widens to the rear and becomes a line of broken spots, and a black stripe behind the eye. Their crown and nape are blackish brown with whitish buff streaks. Voice: The narrow-billed woodcreeper's song is "a loud series 3–5 seconds long of 4–8 sharp descending notes that may be either clear whistles 'peer, peer, peer, peeer, peeeer, pweeeer', rolling and somewhat slurred repetitions of 'drewEEew', or clear notes that gradually accelerate, fade and descend, 'peeé, pee-pee-pee-pee-peepeepeepeepupupu'.
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: Montane Woodcreeper and Narrow-billed Woodcreeper.