Rufous Spinetail
Synallaxis unirufa
The rufous spinetail is 16 to 18 cm (6.3 to 7.1 in) long and weighs 17 to 21 g (0.60 to 0.74 oz). It is one of the larger members of genus Synallaxis. The sexes have the same plumage. Adults of the nominate subspecies S. u. unirufa are mostly bright reddish rufous. Their forehead is slightly paler and they have sooty blackish lores. Their throat feathers have black bases that are seldom visible. Their iris is dark brown to dark reddish brown, their bill black with sometimes a pale base to the mandible, and their legs and feet gray to dark gray. Voice: The subspecies of the rufous spinetail have significantly different vocalizations, which hints that some of them may warrant full species status. "An in depth study is clearly required to gain a better understanding of the taxonomic relationships in this complex." The details of the subspecies' vocalizations are: S. u.
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: Rufous Spinetail and Silvery-throated Spinetail.