Hydrobatidae, Mathews, 1912

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, 2018, An overview of migratory birds in Brazil, Papéis Avulsos de Zoologia 58, pp. 1-66 : 7

Hydrobatidae

Fregetta grallaria (MGT) : occurs in tropical and subtropical seas of the Southern Hemisphere. It breeds on the islands of Lord Howe, Kermadec, Tristan da Cunha, Gough, St. Paul, Amsterdam, Juan Fernandez and Austral (Rapa Island). It apparently migrates to lower latitudes and reaches the Brazilian coast ( Carboneras, 1992c; Olmos, 2000a), where it occurs in open sea between RJ and BA in October ( Coelho et al., 1990; Sick, 1997).

Fregetta tropica (MGT) : after breeding on Antarctic and subantarctic islands, migrates north to subtropical and tropical zones, reaching most of the Brazilian coast ( Carboneras,1992c).The subspecies F.t. tropica , which occurs in Brazil, breeds on South Georgia, South Shetland and South Orkney Islands to the east as far as the Antipodes. It uses Brazil as a wintering area ( Grantsau, 2010) and there are records for the coast of BA in January ( Olmos, 2000b) and for RS ( Petry et al., 2016), where it was photographed in November 2011 (WikiAves, 2016).

Oceanites oceanicus (MGT) : breeds on subantarctic islands from Cape Horn east to Kerguelen Islands, and on southern seas on South Shetland and South Sandwich islands and the Antarctic coast ( Carboneras et al., 2016). It has been mainly recorded between April and November for several places on the Brazilian coast, from BA to RS ( Belton, 1984; MZUSP; MNRJ; WikiAves, 2016). However, there are isolated records for RN in January and for BA in March (WikiAves, 2016; MZUSP).

Oceanodroma leucorhoa (MGT) : after breeding in the Northern Hemisphere and in South Africa,its populations migrate mainly southwards as far as the Cape of Good Hope.Part of the population overwinters on the equatorial coast of Brazil ( Carboneras,1992c),and there are records from Amapá (AP) to SP without defined dates ( Grantsau, 2010), except for those on the coast of RN that are from January 2015 (WikiAves, 2016) and for some specimens collected in AP in February an May, for PA in January and February, and in CE in January (MZUSP; MPEG).