Nyctanassa violacea (MPR) N. v. cayennesis Neohelice granulata An overview of migratory birds in Brazil Somenzari, Marina Amaral, Priscilla Prudente do Cueto, Víctor R. Guaraldo, André de Camargo Jahn, Alex E. Lima, Diego Mendes Lima, Pedro Cerqueira Lugarini, Camile Machado, Caio Graco Martinez, Jaime Nascimento, João Luiz Xavier do Pacheco, José Fernando Paludo, Danielle Prestes, Nêmora Pauletti Serafini, Patrícia Pereira Silveira, Luís Fábio Sousa, Antônio Emanuel Barreto Alves de Sousa, Nathália Alves de Souza, Manuella Andrade de Telino-Júnior, Wallace Rodrigues Whitney, Bret Myers Papéis Avulsos de Zoologia 2018 2018-02-20 58 1 66 6PB Leach 1820 [170,279,570,595] Aves Ardeidae Animalia Pelecaniformes 24 25 Chordata family    Nyctanassa violacea(MPR): occurs from the coast of the USAto northern Peruand Brazilin all coastal states from AP to RS ( Sick,1997;WikiAves,2016).Movements from the subspecies  N. v. cayennesis,which occurs in Brazil, are little known ( Martínez-Vilalta & Motis, 1992). In the estuary from Lagoa dos Patos/RS, where it breeds, its occurrence is seasonal between August and April ( Gianuca,2007) and a large part of the population is absent from this state between April and August,when its main prey (the crab  Neohelice granulata) remains in its burrows ( Martínez-Vilalta & Motis, 1992).There are other records for RS in September, October, November, December and February ( Belton, 1984; WikiAves, 2016), which confirm the migratory pattern in the state even though it is present in all other states throughout the year (WikiAves, 2016).