IUCN threat status:

Critically Endangered (CR)

Distribution

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Range Description

Thryothorus nicefori occurs on the western slope of the East Andes in Colombia. The only known site was the type-locality at San Gil on the río Fonce south of Bucaramanga, where ten specimens were collected between 1944-1948 (Renjifo et al. 2002). There were no further records until two birds were observed and recorded in 1989, and then again in 2000 (Renjifo et al. 2002). Subsequently it has been recorded in Soata, Boyacá c.100 km south and in the Yariguies mountains 50 km to the west (Balchin 2007, Cortes et al. in press), and was then found in the municipalities of Curiti, Zapatoca, Barichara, Jordan, Galan, Socorro and Floridablanca, Santander (Parra et al. 2006). A 2008 survey in the department of Santander discovered a population of 21 individuals, which is now protected by the Niceforo's Wren Natural Bird Reserve. In addition it was recorded at Tipacoque, Susacon, Guacamayas, El Espino, Santa Rosa de Viterbo and Capitanejo (O. Cortes in litt. 2012). A further 56 individuals have been recorded in other regions, giving a known global population of 77. An approximate estimate places the population as high as 250 individuals, although its accuracy needs to be confirmed (S. Valderrama in litt. 2008, 2010).


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Source: IUCN

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