Araucaria Tit-Spinetail
Leptasthenura setaria
Very distinctive, small crested spinetail with a streaky head, a very long forked tail, a rusty-brown back, and buffy underparts. Restricted to Araucaria forests, where pairs are mostly found high in the canopy moving very actively. The song is a fast high-pitched trill.
Identification
The Araucaria tit-spinetail is 17 to 19 cm (6.7 to 7.5 in) long and weighs about 11 g (0.39 oz). It is a small-bodied, long-tailed furnariid with a short crest and a longish (for the genus) slightly decurved bill. The sexes have the same plumage. Adults have a thin white supercilium on an otherwise black and white striped face. Their crown and crest are blackish with narrow paler streaks. Their upperparts are reddish brown with faint pale streaks on the upper back. Their wings are mostly rufous with wide rufous bases on the otherwise blackish flight feathers. Their tail is mostly reddish brown with the inner webs of the three central pairs a darker brown; the tail is deeply forked and the feathers have bare shafts at their ends. Their throat and upper breast are whitish with blackish streaks; their lower breast and belly are tawny-buff that is richer on the flanks. Their iris is brown or gray, their bill blackish with a paler base to the mandible, and their legs and feet grayish green. Juveniles have an almost unstreaked crown and a less distinct pattern overall.
Taxonomy
For a period in the early twentieth century the Araucaria tit-spinetail was placed by itself in genus Dendrophylax. Research published in 2011 conclusively placed it in Leptasthenura.<p>The Araucaria tit-spinetail's English name comes from the Araucaria angustifolia ("Brazilian pine"), on which is the bird is totally dependent.<p>The Araucaria tit-spinetail is monotypic.
- Scientific name
- Leptasthenura setaria
- Authority
- (Temminck, 1824)
- Order
- Passeriformes
- Family
- Furnariidae
- Genus
- Leptasthenura
Range and habitat
The Araucaria tit-spinetail is found in Brazil from far southern Minas Gerais and Rio de Janeiro states south into Rio Grande do Sol and west into northern Argentina's Misiones Province. It inhabits Araucaria angustifolia trees in almost any landscape, be it forest, woodland, scattered groves, gardens, or plantations. In elevation it mostly occurs between 750 and 1,400 m (2,500 and 4,600 ft) but is found as high as 2,000 m (6,600 ft).
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
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Fairly large and distinctive woodcreeper. Much more boldly marked than any other woodcreeper in range: obvious thick white streaking above and below. Found singly or in pairs, usually in forest, where you might see it hitching up the lower part of a tree trunk. Often follows mixed-species flocks. Listen for voice, a clear descending series of notes, usually stuttered at the beginning.
Pallas's Bunting
Emberiza pallasi
Very similar to Reed Bunting, but smaller and more slender; also note finer bill, colder pale buffy-brown (instead of rufous) wing coverts, and less extensive streaking on the underparts. Breeding male has a black hood and bright white “moustache” stripe. Female and non-breeding birds are pale sandy brown with a pale but noticeable white “moustache.” Breeds in thickets and vegetation clusters in tundra and winters in reedbeds and tall grassy or brushy areas near water, where often associated with mixed-species flocks. Song is a series of wet buzzy “tsli” notes. “Chlip” calls distinctly sparrow-like.
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