Long-billed Woodcreeper
Nasica longirostris
The long-billed woodcreeper is one of the largest woodcreepers, with a slim body, small head, long neck, long tail, and an exceptionally long, slightly decurved, bill. It is 34 to 36 cm (13 to 14 in) long and weighs 78 to 92 g (2.8 to 3.2 oz). The sexes are alike. The adult's crown, nape, and auricular area are blackish brown with whitish buff streaks. It has a white supercilium, throat, and foreneck. Its back, rump, wings, and tail are bright cinnamon-rufous to rufous-chestnut. The tips of its outermost primaries are dark brown. Voice: The long-billed woodcreeper sings during the day, but infrequently. Its song is a "oud and far-carrying...series of 3-4 eerie and plaintive whistles, e.e. 't w o o o o o ó o o...t w o o o o o ó o o'." It is also described as "loud melancholy-sounding, drawn-out calls 'wuuuueet' " repeated three or four times.
ID text from Wikipedia, CC BY-SA 4.0
Silvery-throated Spinetail
Synallaxis subpudica
The silvery-throated spinetail is 17 to 19 cm (6.7 to 7.5 in) long. The sexes have the same plumage. Adults have a thin light cinnamon supercilium on an otherwise grayish brown face. Their forecrown is grayish brown, their hindcrown and nape rufous-chestnut, and their back, rump, and uppertail coverts brown. Their wing coverts and base of their flight feathers are chestnut and the rest of the flight feathers are brown. Their tail is a slightly darker brown than the back; it is very long and the feathers lack barbs at their tips, giving a spiny appearance. Voice: The silvery-throated spinetail's song is "a fast, accelerating, descending and fading series of chattering notes...'chí-chi-chi-che-che-che-chu-chu-chu' " and is often sung in duet. Its call is "a sharp 'kik' " and its alarm call "a low trill".
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: Long-billed Woodcreeper and Silvery-throated Spinetail.