Within its boundaries, Tapytá preserves one of the most important concentrations of biodiversity in Paraguay. Six distinct natural communities share the reserve: forests of variable height and structure, wooded savannahs, wetlands, caves, rivers and springs, creating a mosaic of habitat that supports an exceptional range of species.

The numbers tell a compelling story: 435 plant species, 44 mammals and more than 375 bird species, representing 53 percent of Paraguay's total avian richness.

Of those, 65 are endemic to the Alto Paraná Atlantic Forest, cementing Tapytá's reputation as one of the country's most significant bird conservation areas. Fourteen reptile and 16 amphibian species complete a checklist that rewards naturalists at every level.

Several of the reserve's most important residents carry threatened status and are rarely seen elsewhere. The Saffron-cowled Blackbird inhabits the vegetated wetlands and natural grasslands. The Bare-throated Bellbird, one of the forest's most distinctive voices, lives high in the canopy. The Sharp-tailed Tyrant works the dry and humid savannahs.

Among mammals, the Maned Wolf moves through the open fields, while the Margay, threatened both nationally and internationally, keeps to the dense humid forest where it is most at home.

For tour operators building serious wildlife and birding itineraries in eastern Paraguay, Tapytá is not a secondary stop. It is a destination in its own right.