Gabriel Rojo / White cheeked pintail duck {Anas bahamensis} La Pampa, Argentina

Lucas Bustamante / White-cheeked pintail (Anas bahamensis galapagensis) resting, Santa Cruz Island, Galapagos.

Gabriel Rojo / White-cheeked pintail (Anas bahamensis) in flight, La Pampa, Patagonia, Argentina

Tui De Roy / White cheeked pintail duck (Anas bahamensis) female with chick, Galapagos

Steve Gettle / White-cheeked Pintail (Anas bahamensis), Galapagos Islands, Ecuador

Gabriel Rojo / White-cheeked pintail, (Anas bahamensis) two in flight, La Pampa, Argentina

Gabriel Rojo / White-cheeked pintail (Anas bahamensis) two resting by water, La Pampa, Argentina

Tui De Roy / White cheeked pintail (Anas bahamensis) chicks at waters edge, Galapagos

Tui De Roy / White-cheeked Pintail (Anas bahamensis) and chick, Academy Bay, Santa Cruz Island, Ecuador

Glenn Bartley / White-cheeked Pintail (Anas bahamensis), British Columbia, Canada

Glenn Bartley / White-cheeked Pintail (Anas bahamensis), British Columbia, Canada

Daniel Heuclin / White-cheeked Pintail (Anas bahamensis) Bolivia, August