Joel Sartore / Photo Ark / Marajo amazon (Amazona ochrocephala xantholaema) head portrait, Loro Parque Fundacion. Captive, occurs in Marajo Island, Amazon River delta, Brazil.

Joel Sartore / Photo Ark / Marajo amazon (Amazona ochrocephala xantholaema) eye detail, Loro Parque Fundacion. Captive, occurs in Marajo Island, Amazon River delta, Brazil.

Joel Sartore / Photo Ark / Marajo amazon (Amazona ochrocephala xantholaema) head portrait, Loro Parque Fundacion. Captive, occurs in Marajo Island, Amazon River delta, Brazil.

Maxime Aliaga / Two Blue-and-yellow macaws (Ara ararauna) eating clay in middle of Southern mealy parrot (Amazona farinosa) flock on Clay lick. Tambopata National Reserve, Madre de Dios, Peru.

Karine Aigner / Yellow-crowned parrot (Amazona ochrocephala) perched, Ecuador.

Karine Aigner / Mealy parrot (Amazona farinosa), Dusky Headed Parakeet (Aratinga weddellii) and Yellow-crowned Parrot (Amazona ochrocephala) group at clay lick. Yasuni National Park, Ecuador