A habitat of specialists
The Raso da Catarina is a semi-arid ecoregion within the Caatinga, a type of tropical dry forest unique to Brazil. The landscape is a mosaic of thorny shrubs, cacti, and drought-adapted trees. This was the home of the Spix's macaw (Cyanopsitta spixii), a bird with a specialized existence. Its survival was intrinsically linked to the gallery woodlands that trace the seasonal creeks, particularly the Caribbean trumpet tree, or Caraibeira (Tabebuia aurea). These trees provided the essential hollows for nesting and were a food source. The macaw's diet consisted mainly of seeds and nuts from Caraibeira and various spurge shrubs dominant in the Caatinga. This extreme dependency on a specific habitat, already restricted to the Rio São Francisco drainage basin, made the species exceptionally vulnerable.
Extinction by a thousand cuts
The decline of the Spix's macaw was a slow-motion catastrophe driven by human activity. For decades, the primary pressures were illegal trafficking for the global pet trade and persistent habitat destruction. The expansion of agriculture and livestock grazing fragmented the delicate gallery forests. By the mid-1980s, field surveys could only locate a handful of individuals. In 1990, researchers identified a single surviving wild male. This bird became a sign of his species' plight, famously pairing with a female of a different species, the Illiger's macaw (Primolius maracana). Despite an attempt to introduce a captive female in 1995, which ended when the bird collided with a power line, the lone male remained the last of his kind in the wild. He was last sighted in October 2000, and his disappearance marked the moment the Spix's macaw was declared extinct in the wild.
The return
What followed the wild extinction was a complex, international captive breeding program. The entire global population, held by organizations like the Association for the Conservation of Threatened Parrots (ACTP) in Germany and Al Wabra Wildlife Preservation in Qatar, was built from a very small number of founder birds. In March 2020, a group of 52 macaws was repatriated from Germany to a purpose-built facility in Curaçá, Bahia, within their historical homeland.
The first carefully planned release took place in June 2022. A group of Spix's macaws was released alongside a group of wild-caught Illiger's macaws. The Illiger's macaws act as mentors, teaching the captive-bred Spix's essential survival skills, such as identifying native foods and recognizing predators. The project has seen early success, with the first wild-born chicks hatching in decades. This ambitious effort represents a new chapter for the Raso da Catarina, transforming it from a site of loss into a recovery area.