David Perpinan / Three Black-hooded parakeet / Nanday parakeet (Nandayus nenday) in a tree, cleaning beaks on the branches, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Black-hooded parakeet / Nanday parakeet (Nandayus nenday) feeding, Pantanal, Mato Grosso do Sul, Brazil.

Rod Williams / Hooded parrot {Psephotus dissimilis} captive, from Australia

Tony Heald / Hooded parrot {Psephotus dissimilis} female, Northern Territory, Australia

Etienne Littlefair / Hooded parrots (Psephotus dissimilis) pair drinking from a puddle in a drying creek bed, Pine Creek, Northern Territory, Australia.