Brazilian Teal Amazonetta brasiliensis
Also known as Brazilian Duck, this is another species I have seen in several wildfowl collections, but not yet in the wild. There are two subspecies - I *think* these belong to the nominate race brasiliensis, sometimes known as Lesser Brazilian Teal, rather than ipecutiri (Greater Brazilian Teal).
captive Brazilian Teal, Grange-over-Sands collection (Cumbria, UK), 28th December 2011
captive Brazilian Teal, Blakeney Quayside collection (Norfolk, UK), 28th February 2009
2x captive Brazilian Teals, Blakeney Quayside collection (Norfolk, UK), 13th February 2010
2x captive Brazilian Teals, Blakeney Quayside collection (Norfolk, UK), 12th February 2011