The Osa Peninsula in Costa Rica is renowned for its incredible biodiversity. Based on available information, here’s what I can tell you about the number of bird species, mammals, and cats found in this region:

• Bird Species: The Osa Peninsula is a birdwatcher’s paradise, hosting over 460 species of birds. This number reflects the region’s diverse habitats, including rainforests, mangroves, and coastal areas, which attract both resident and migratory birds. Notable species include the Scarlet Macaw, various toucans, and the endemic Black-cheeked Ant Tanager.

• Mammals: The peninsula is home to approximately 140 mammal species. This includes a wide range of animals such as monkeys (all four Costa Rican species: howler, spider, squirrel, and white-faced capuchin), sloths, tapirs, jaguars, and numerous bat species, which make up a significant portion of the mammal population. The Osa’s intact rainforests, particularly in Corcovado National Park, support this rich mammalian diversity.

• Cats: Specifically regarding felids, the Osa Peninsula is home to five of Costa Rica’s six wild cat species. These are:

  1. Jaguar (Panthera onca) – the largest cat in the Americas and an apex predator.

  2. Puma (Puma concolor) – also known as the mountain lion, the second-largest cat in the region.

  3. Ocelot (Leopardus pardalis) – a spotted cat known for its agility.

  4. Margay (Leopardus wiedii) – a smaller, tree-dwelling cat resembling a miniature leopard.

  5. Jaguarundi (Herpailurus yagouaroundi) – a sleek, small cat active during the day. The sixth Costa Rican wild cat, the Oncilla (Leopardus tigrinus), is not found on the Osa Peninsula but is present in other parts of the country.

* All pictures below are taken at Maze Lodge