Glenn Bartley/ BIA / Great Curassow (Crax rubra), Costa Rica

Wim van den Heever / Bare-faced curassow (Crax fasciolata) portrait of female, Pantanal, Brazil.

Nick Garbutt / Male Bare-faced Curassow (Crax fasciolata) near Araras Lodge, Mato Grosso, Northern Pantanal, Brazil, South America.

Nick Garbutt / Bare-faced Curassow (Crax fasciolata) male and female, Near Araras Lodge, Mato Grosso, Northern Pantanal, Brazil, South America.

Edwin Giesbers / Horned guan (Oreophasis derbianus) portrait, captive, endangered

Tui De Roy / Bare-faced Curassow (Crax fasciolata) male in typical Cerrado habitat, Emas National Park, Brazil

Gabriel Rojo / Bare-faced curassow (Crax fasciolata) running across the Transpantaneira route, car in background. Pantanal, Mato Grosso, Brazil. 2017.

Ernie Janes / Bare-faced curassow (Crax fasciolata) portrait, captive, occurs in South America.

Ernie Janes / Helmeted curassow (Pauxi pauxi) captive, occurs in western Venezuela and northern Colombia

Ernie Janes / Helmeted curassow (Pauxi pauxi) captive, occurs in western Venezuela and northern Colombia

Oscar Dewhurst / Blue-throated Piping-Guan (Pipile cumanensis) feeding on palm fruits in the Peruvian Amazon. Madre de Dios, Peru. March

Lucas Bustamante / Spix's Guan (Penelope jacquacu) Tambopata National Reserve, Madre de Dios, Peru.