Red-spectacled Amazon

Characterized as a medium-sized psittacine, this bird attains a total body length of 30 to 32 cm and weighs between 250 and 300 g. Its foundational plumage is a radiant bright green, highlighted by subtle dusky terminal fringes that lend a scalloped texture to the hindneck and mantle. Its most prominent identification mark is a brilliant patch of scarlet red covering the forehead, lores, and periocular region, creating an unmistakable spectacle-like appearance that extends to the carpal edges, shoulders, and thighs. Distinct sexual dimorphism is evident on the outer wing surfaces: adult males present bold red primary coverts and alula feathers, whereas females show largely green forewings with minimal or scattered red flecking. The heavy bill is yellowish-horn, complemented by bare whitish orbital skin and an iris that transitions from orange-yellow to intense orange in fully mature adults.

Geographical distribution: Endemic to the southern cone of South America, this species maintains its viable contemporary populations strictly in southern Brazil, where it ranges across Rio Grande do Sul and Santa Catarina, with sporadic presence in southern Paraná. Historically, its nomadic range touched northeastern Argentina in Misiones province and eastern borders of Paraguay, places where it is now regarded as regionally extirpated or an accidental visitor. Flocks perform substantial seasonal migrations between lower-altitude nesting grounds and montane plateaus.

Habitat: Confined almost exclusively to the subtropical Atlantic Forest biome, demonstrating an obligatory ecological reliance on mixed montane forests dominated by the candelabra pine (Araucaria angustifolia). It occupies altitudinal ranges spanning from 500 to 1,400 m above sea level, readily utilizing plateau rims, riverine gallery woodlands, wooded savannahs, and mixed shrubby hillsides with pockets of Podocarpus lambertii.

Feeding: Possesses a highly specialized granivorous and frugivorous feeding ecology tuned to the seasonal masting of Araucaria angustifolia. The large, starch-rich seeds called pinhões comprise the absolute staple of its winter survival. During other seasonal phases, it broadens its intake to include the seeds and fleshy pulp of Podocarpus lambertii, Campomanesia xanthocarpa, Casearia sylvestris, assorted Myrtaceae berries, flower blossoms, and tender leaf shoots.

Behavior: Displays pronounced gregarious tendencies and intense social cohesion outside the nesting months, assembling at historic communal roosting sites that can shelter thousands of individuals at once. Morning departures from roosts to foraging grounds involve massive, vocal groups traveling along regular aerial corridors. Flight is strong, rapid, and slightly undulating, underscored by continuous metallic shrieks and contact chatter.

Nesting: Breeds during the austral spring and summer from September to January, establishing stable monogamous pairs that defend the immediate vicinity of their nest tree. Natural hollows in large living or dead trunks of trees such as Araucaria angustifolia, Erythrina cristagalli, and Nectandra lanceolata provide primary nest chambers, with occasional cliff crevices being used. The female deposits a clutch of 2 to 4 white eggs, incubating them alone for 26 to 28 days while being nourished by the male via regurgitation. The altricial nestlings are cared for by both parents inside the cavity for approximately 50 to 55 days before fledging.

Conservation status: Listed globally as Vulnerable (VU) by the IUCN. Decades of habitat contraction triggered by the commercial logging of araucaria stands reduced its core ecosystem to fragmented relict pockets, while chronic shortages of mature nesting trees and targeted poaching for the illicit pet trade have severely impaired natural population recovery.