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Range DescriptionAnthus nattereri occurs in south-east Brazil (Minas Gerais, So Paulo, Paran, Santa Catarina and Rio Grande do Sul), south Paraguay (Paraguar, Misiones, Itapa, Caazap, eembucu and one record from Presidente Hayes), north Argentina (Corrientes) south to 2834S (Codesido and Fraga 2009) and, since 2004, north and central Uruguay (Azpiroz & Menndez 2008). It was widespread in Brazil, but has declined dramatically with recent sightings from Serra da Canastra, Alfenas and Poos de Caldas (Minas Gerais), and near Itirapina (So Paulo)(T. A. de Melo Jnior in litt. 1998), with a possible record from Lages (Santa Catarina). In Paraguay, surveys in 1995-1998 discovered important populations at Yabebyry (Misiones), Isla Yacyret, u Guaz (both Itapa) and Tapyt (Caazap) (Clay et al. 1998, R. P. Clay in litt. 1999, Lowen et al. 1996), with singing males at a further 10 sites (R. P. Clay in litt. 1999). These sites, with San Juan Bautista (Corrientes) and Serra da Canastra, may now represent the species's strongholds. However, recent fieldtrips to Yabebyry (Misiones) and Isla Yacyreta (Itapa) resulted in no observations of the species. It has however recently been found at two new localities: Estancia Lago Ypoa (Paraguar) and Estancia Guaz Cu (eembucu) (Codesido and Fraga 2009).