Revista Brasileira de Ornitologia, 22(2), 138-171 ARTICLE June 2014 The avifauna of Viruá National Park, Roraima, reveals megadiversity in northern Amazonia Thiago Orsi Laranjeiras1,2,7, Luciano Nicolás Naka1,3, Catherine L. Bechtoldt1, Thiago Vernaschi Vieira da Costa1, Christian Borges Andretti1, Marconi Campos Cerqueira1,4, Marcela de Fátima Torres1, Gisiane Lima Rodrigues1, Marcos Pérsio Dantas Santos5, Claudeir Ferreira Vargas1, Angela Midori Furuya Pacheco1, Carla Haisler Sardelli1, Juan Mazar-Barnett6 and Mario Cohn-Haft1. 1 Programa de Coleções e Acervos Científicos, Coleção de Aves, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, Petrópolis, CEP 69083-000, Manaus, Amazonas, Brazil. 2 Instituto Chico Mendes de Conservação da Biodiversidade, Rua Alfredo Cruz, 283, Centro, CEP 69301-140, Boa Vista, Roraima, Brazil. 3 Laboratório de Ornitologia, Departamento de Zoologia, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, CEP 50670-001, Recife, Pernambuco, Brazil. 4 Biology Departament, University of Puerto Rico - Rio Piedras, San Juan, Puerto Rico 5 Laboratório de Ecologia e Zoologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 01, Guamá, Caixa postal 479, CEP 66075-110, Belém, Pará, Brazil. 6 Deceased 7 Corresponding author:
[email protected] Received on 05 February 2014. Accepted on 20 May 2014. ABSTRACT: While many published maps of avian species richness indicate northern Amazonia to be somewhat species-poor, recent surveys reveal that this area actually possesses one of the most species-rich avifaunas in the Neotropical lowlands. Our surveys indicate that at least 520 bird species occur in Viruá National Park (VNP) and adjacent areas, which is located in the Brazilian state of Roraima (northern Amazonia).