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Range DescriptionThis species is found in the East Andes of south Bolivia (south Santa Cruz, Chuquisaca and Tarija) and north-west Argentina (Jujuy and Salta) (del Hoyo et al. 1994, Fjelds and Krabbe 1994, Strahl et al. 1994, Stotz et al. 1996). Recent surveys estimated the population in Montes Chapeados, Chuquisaca, at 6,000 adults, with a similar sized population projected to occur in the Ro Pilcomayo area, Chuquisaca (Fjelds and Krabbe 1994, Fjelds and Mayer 1996). Other large populations occur east of Padilla, Chuquisaca, and in Serrana Iao, and a population was recently discovered in south Santa Cruz, extending its known range northwards (Fjelds and Krabbe 1994, Fjelds and Mayer 1996). In Argentina, it is locally common in Calilegua National Park, Jujuy, and Barit National Park, Salta (Chebez et al. 1998), and intermediate records indicate these populations are possibly connected.