Flip de Nooyer / Hoatzin (Opisthocomus hoazin) chick has claws on its wings to grip and climb, Guyana

Flip de Nooyer / Black-handed Spider Monkey (Ateles geoffroyi) hanging by prehensile tail, Guyana

Flip de Nooyer / Hoatzin (Opisthocomus hoazin) close up of the vestigial claws on a chick's wing used for grasping, Guyana

Flip de Nooyer / Hoatzin (Opisthocomus hoazin) close up of the vestigial claws on a chick's wing used for grasping, Guyana

Flip de Nooyer / Hoatzin (Opisthocomus hoazin) chick swimming in water after jumping from nest to avoid predators, Guyana

Flip de Nooyer / Hoatzin (Opisthocomus hoazin) chick swimming in water after jumping from nest to avoid predators, Guyana

Flip de Nooyer / Hoatzin (Opisthocomus hoazin) chick jumping into water from nest in tree to avoid predators, Guyana