Ovenbirds (Furnariidae)
Black-tailed Leaftosser (Sclerurus caudacutus) - HBW 8, p. 352
French: Sclérure des ombres
German: Weißkehl-Laubwender
Spanish: Tirahojas Colinegro
Other common names: Black-tailed Leafscraper
Taxonomy: Thamnophilus caudacutus Vieillot, 1816, French Guiana.
This and S. guatemalensis thought by most authors to be sister-species on basis of plumage similarities and parapatric ranges. Validity of race insignis, described from a single locality, seems questionable. Geographical distribution of races, particularly N of R Amazon, not well understood, and individual variation in many of the characters used to describe most of them may lead to substantial revision of boundaries; specimens from R Purús (W Brazil) intermediate between pallidus and brunneus; further, proposed race olivascens (from SC Peru) evidently not .. View all taxonomy...
This and S. guatemalensis thought by most authors to be sister-species on basis of plumage similarities and parapatric ranges. Validity of race insignis, described from a single locality, seems questionable. Geographical distribution of races, particularly N of R Amazon, not well understood, and individual variation in many of the characters used to describe most of them may lead to substantial revision of boundaries; specimens from R Purús (W Brazil) intermediate between pallidus and brunneus; further, proposed race olivascens (from SC Peru) evidently not diagnosable, probably represents clinal variation within latter (specimens from SW Amazonia less reddish on average than those farther N). Critical revision of races and their boundaries badly needed. Five subspecies recognized.
Subspecies and Distribution:
- brunneus P. L. Sclater, 1857 - W Amazonia from SE Colombia (S from W Meta and Vaupés) and S Venezuela S to E Ecuador, E Peru, W Brazil (W Amazonas, Acre, Rondônia) and N Bolivia (Pando, NW La Paz).
- caudacutus (Vieillot, 1816) - the Guianas.
- insignis J. T. Zimmer, 1934 - N Brazil N of R Amazon (NW Pará; probably more widespread).
- brunneus P. L. Sclater, 1857 - W Amazonia from SE Colombia (S from W Meta and Vaupés) and S Venezuela S to E Ecuador, E Peru, W Brazil (W Amazonas, Acre, Rondônia) and N Bolivia (Pando, NW La Paz).
- caudacutus (Vieillot, 1816) - the Guianas.
- insignis J. T. Zimmer, 1934 - N Brazil N of R Amazon (NW Pará; probably more widespread).
- pallidus J. T. Zimmer, 1934 - C Brazil S of R Amazon (E from at least R Madeira to W Maranhão).
- umbretta (M. H. K. Lichtenstein, 1823) - coastal E Brazil (Alagoas S to Espírito Santo).
- Least Concern Enlarge map
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Poor view of a bird hopping on a log at dusk Locality Rio Roosevelt, Amazonas State, Brazil (ssp pallidus)
Josep del Hoyo 12 July 2007 4 years ago 41 sec 2.5
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Individual in hand
Locality Nouragues Reserve, French Guiana (ssp caudacutus)
maxcobigo 5 April 2009 2 years ago 3.5 -
Rear view of bird perched
Locality Nuevo Salem, Amazonas Department, Peru
Chris and Megan Perkins 17 November 2011 7 weeks ago 2.4
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Song of adult Locality Napo Wildlife Center, Orellana Province, Ecuador
(ssp brunneus)
Dusan Brinkhuizen 18 June 2011 33 weeks ago 5 -
Song of adult Locality Napo Wildlife Center, Orellana Province, Ecuador
(ssp brunneus)
Dusan Brinkhuizen 18 June 2011 33 weeks ago 4.5 -
After play-back. Locality Murici Reserve, Alagoas State, Brazil
(ssp umbretta)
Ciro Albano 2 January 2008 2 years ago 4
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