
Pseudocolopteryx acutipennis (MGT):occurs in central and eastern Andes from Colombia to northwestern Argentina and in lowlands in western Paraguay, in addition to occasional records for southeastern Peru, northeastern and eastern Bolivia and extreme southwestern Brazil (MT and MS) (Grantsau, 2010; Bostwick, 2016). It breeds from December to April in the Bolivian highlands and populations from Bolivia, as well as those from Argentina, migrate along the Andes towards the Amazonian lowlands and the Paraguayan Chaco. It is recorded for the lowlands of Bolivia and Peru only as an austral winter visitor (Bostwick, 2016). In Brazil, there are records for the coast of PR without precision of date, for a fluvial island in RO in June-July and for the Pantanal in MT and MS in May and September (Vasconcelos et al., 2008 a). Although there is a lack of museum data, photographic records corroborate a migration during austral winter with records for the central-western region (MT, MS and GO) from May to September.There are two records for RS in December (WikiAves, 2016).
