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Abstract
The avifauna of the western Chaco forest was surveyed at least twice a year during the dry and wet season from 1983 to 1988 near Joaquín V. González. province of Salta (25!! 05' S. 64!' 10' W). Strip transects were used. Comments include abundance and migratory status. A total of 139 species were recorded. which corresponds to 34% of the whole Chaco avifauna. Most diverse families include Tyrannidae (24 spp.), Emberizidae (18 spp.), Accipitridae (12 spp.) and Furnariidae (11 spp.). Sixty-four percent of the species behaved as residents, 26% as migrants, and 10% as nomads.
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