Curuá River (Iriri River) Curuá River (Iriri River) The Curuá River is a tributary of the Iriri River in Pará state in north-central Brazil. It is a tributary of the Iriri River. The river flows through the Tapajós-Xingu moist forests ecoregion. The river rises in the Nascentes da Serra do Cachimbo Biological Reserve, a strictly protected conservation unit established in 2005. It is one of the headwaters of the Xingu River. The upper part and the lower part of the Curuá River are divided by two waterfalls, only apart. The first waterfall is tall and the second is tall. As a consequence, the fauna
Tapajós-Xingu moist forests These include osprey ("Pandion haliaetus"), harpy eagle ("Harpia harpyja"), channel-billed toucan ("Ramphastos vitellinus"), little chachalaca ("Ortalis motmot"), nine tinamou species (Crypturellus and Tinamus genera), seven macaw species (Ara genus) including hyacinth macaw ("Anodorhynchus hyacinthinus"), many parakeets (Aratinga, Pyrrhura and Brotogeris genera), parrots (Amazona and Pionus genera) and hoatzin ("Opisthocomus hoazin"). Endangered birds include the green-thighed parrot ("Pionites leucogaster") and red-necked aracari ("Pteroglossus bitorquatus"). The World Wildlife Fund classes the ecoregion as "Vulnerable". The Tapajós-Xingu, Xingu-Tocantins-Araguaia and Tocantins-Pindara moist forest ecoregions on the eastern edge of the Amazon basin have all been badly affected by human settlement and deforestation. Roads have