Chionidae, Lesson, 1828

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 : 9

Chionidae

Chionis albus (MGT) : breeds on the Antarctic Peninsula, on South Shetland, Elephant, South Orkney and South Georgia islands and probably on South Sandwich Islands ( Harrison,1983). Most individuals depart from the breeding site between late April and early July and although its migratory routes are little known, its main wintering areas seem to be the Malvinas /Falklands, Tierra del Fuego and southern Patagonia, with some individuals reaching Uruguay ( Burger, 1996). Burger (1996) suggests that this species is vagrant in Brazil, as Accordi & Hartz (2013) classified it for RS, where it was recorded for the first time in May 1973 ( Belton, 1974). However, its occurrence is limit- ed to the period between April and August in the southern states of PR, SC and RS ( Dias et al., 2010a), which is also illustrated by photographic records available for RS (WikiAves, 2016).