Callonetta leucophrys (MPR):occurs from northern Argentina to Bolivia, Paraguay, and Brazil in MT, RS, SP, Distrito Federal (DF) and MG (Sick, 1997). Literature data suggests that it is a migratory species that originates from extreme southern South America (Chesser, 1994; Sick, 1997; Nunes & Tomas, 2004). The direction and amplitude of its movements are not well defined, but there certainly is dispersal after breeding, which expands its distribution near to the coast and in lower latitudes (Carboneras, 1992a). However, photographic records available on WikiAves show that the species is present all year round in RS and that there are even records of breeding activity between November and February (Belton, 1994; Maurício et al., 2013; WikiAves, 2016). It is also recorded for Mato Grosso do Sul (MS) from May to November, SP in August, PR in May, MT in September and SC from February to May and from October to December (Straube et al., 2006; WikiAves, 2016). Such data suggests that there are resident populations in RS and at least some migration to other states.