Ovenbirds (Furnariidae)
Thorn-tailed Rayadito (Aphrastura spinicauda) - HBW 8, p. 262
French: Synallaxe rayadito
German: Festland-Stachelschwanzschlüpfer
Spanish: Rayadito Común
Other common names: Thorn-tailed Creeper
Taxonomy: Motacilla spinicauda J. F. Gmelin, 1789, Tierra del Fuego.
Affinities of genus uncertain; plumage features suggest possible relationship to Phleocryptes and to sympatric Pygarrhichas. Close to, and perhaps ancestor of, A. masafuerae. Validity of race bullocki, described from only two specimens, perhaps requires reconfirmation; also, individuals with ochraceous underparts, thus resembling fulva, evidently occur throughout near-shore Chilean islands, suggesting that this ventral pattern may appear independently in insular populations as response to more humid conditions (Gloger’s Rule); in addition, population on Di.. View all taxonomy...
Affinities of genus uncertain; plumage features suggest possible relationship to Phleocryptes and to sympatric Pygarrhichas. Close to, and perhaps ancestor of, A. masafuerae. Validity of race bullocki, described from only two specimens, perhaps requires reconfirmation; also, individuals with ochraceous underparts, thus resembling fulva, evidently occur throughout near-shore Chilean islands, suggesting that this ventral pattern may appear independently in insular populations as response to more humid conditions (Gloger’s Rule); in addition, population on Diego Ramírez I apparently differs morphologically from typical nominate form; further study needed in order to clarify geographical limits and validity of races. Three subspecies currently recognized.
Subspecies and Distribution:
- spinicauda (J. F. Gmelin, 1789) - C & S Chile (S from S Coquimbo) and extreme W Argentina (S from Neuquén) S to Tierra del Fuego, Staten I and Diego Ramírez I; also Falkland Is.
- bullocki Chapman, 1934 - Mocha I, off SC Chile.
- fulva Angelini, 1905 - Chiloé I, off SC Chile.
- Least Concern Enlarge map
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A bird foraging on a tree trunk and calling. Locality El Chaltén, Santa Cruz Province, Argentina (ssp spinicauda)
Paul Clarke 9 January 2011 48 weeks ago 20 sec 4.2 -
A bird perched and jumping to another branch Locality Chiloe Island, Los Lagos Region, Chile (ssp fulva)
Frank Witebsky 2005 4 years ago 10 sec 3.9 -
Foraging in a birch tree and then picking food from lichens on the trunk Locality Ushuaia, Tierra del Fuego Province, Argentina (ssp spinicauda)
Greg Baker 7 February 2005 1 year ago 34 sec 3.8 -
A bird feeding in a tree Locality Termas de Puyehue, Puyehue National Park, Chile (ssp spinicauda)
Josep del Hoyo 4 October 2003 7 years ago 31 sec 3.7 -
A bird moving fast in a tree and a slow motion view at the end Locality Termas de Chillán, Las Trancas Valley, Biobío Region, Chile (ssp spinicauda)
Frank Witebsky 2005 4 years ago 14 sec 3.3 -
A bird creeping up a trunk Locality Termas de Puyehue, Puyehue National Park, Chile (ssp spinicauda)
Josep del Hoyo 4 October 2003 7 years ago 11 sec 3.3
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A bird feeding in the morning.
Locality La Aurora, Santiago Metropolitan Region, Chile
Patricio Mackenzie 8 August 2010 1 year ago 3.5 -
On a tree
Locality Tierra del Fuego National Park, Tierra del Fuego Province, Argentina
oleicfrisbee 35 weeks ago 3 -
On a log.
Locality Ushuaia, Tierra del Fuego Province, Argentina (ssp spinicauda)
Fran Trabalon 20 February 2002 40 weeks ago 3 -
Bird foraging.
Locality Tierra del Fuego National Park, Tierra del Fuego Province, Argentina (ssp spinicauda)
Christophe Gouraud 15 December 2008 3 years ago 2.9 -
Ventral view showing the tail thorns.
Locality Temuco, La Araucanía Region, Chile (ssp spinicauda)
Ken Havard 11 November 2006 1 year ago 2.8
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Bird nesting under a tussock grass that had a nesting Grey-headed Albatros on top Locality Diego Ramírez Islands, Magallanes Region, Chile
(ssp spinicauda)
Santiago Imberti 1 January 2001 13 weeks ago 4.5 -
Calls and song Locality Lagunas de Epu-Lauquen Provincial Reserve, Neuquén Province, Argentina
Nacho Areta 1 March 2008 2 years ago 3
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