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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, FjeldsÃ¥ 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 RÃo Pilcomayo area, Chuquisaca (FjeldsÃ¥ and Krabbe 1994, FjeldsÃ¥ and Mayer 1996). Other large populations occur east of Padilla, Chuquisaca, and in SerranÃa IÃ±ao, and a population was recently discovered in south Santa Cruz, extending its known range northwards (FjeldsÃ¥ and Krabbe 1994, FjeldsÃ¥ and Mayer 1996). In Argentina, it is locally common in Calilegua National Park, Jujuy, and BaritÃº National Park, Salta (Chebez et al. 1998), and intermediate records indicate these populations are possibly connected.