Scarlet macaws are native to the humid evergreen forests of the American tropics in Central and South America, including Mexico in the east, Guatemala, Belize, Colombia, Ecuador, Brazil, and Amazonian Peru. They inhabit humid lowland subtropical rainforests, open woodlands, mangrove vegetation, river edges, and savannas.
Scarlet macaws are diurnal birds that gather in flocks at night. In the morning they will often fly a long distance to find food, flying in small groups or pairs, often calling to each other in hoarse raucous voices. They make nests in tree hollows. If in their nest and danger presents itself, they will cautiously examine the scene until the danger has gone. If their nest is directly threatened, the birds quietly escape to a place of safety. Scarlet macaws often use their left foot when handling food and grasping other objects. They communicate by means of a range of postures and vocalizations.
