Red-browed Amazons prefer to roost and feed in the canopy of primary forest trees, where they could once be seen in large flocks that congregated during the non-breeding season, before numbers became so depleted. Nevertheless, flocks of up to 49 birds have recently been spotted and, like other Amazons, it is likely that this species forms loose foraging groups and roosts together for protection from predators (2). During the breeding season, thought to last from September to November, the birds live in isolated pairs, which establish and defend a nesting territory, usually a large cavity in an old rainforest tree (2) (4). While nesting adults remain isolated from others until their young are fully fledged, immature birds not yet mated may flock together during the breeding season. Nest site fidelity is high in Amazon parrots, and breeding pairs and young often return to the same nest trees where they were raised (2). In captivity, clutches of four eggs are usual, which are incubated for 24 days, with nestlings fledging 34 days after hatching (4).
The red-browed Amazon feeds on fruit, seeds, berries and buds, taken primarily from the forest treetops (2) (5).