Osa Wildlife Field Guides

Our online Osa Peninsula field guide is powered by iNaturalist, it is completely free to use and puts a tour guide in your pocket! Here, you can explore our photography, find information about different Osa Peninsula species, and even upload and identify your own observations. We have recently created our own project on the site and we encourage visitors and tour guides alike to make use of this wonderful resource. We aim to create the most comprehensive catalog of species available, from fungus to blue whales and everything in between. Use the quick links below to explore or add your observations and download the app for Android or iPhone.

Download our Free Identification Field Guides of the Osa Peninsula by clicking on the links below.
Land Mammals

Marine Mammals

Sport Fishing

Birds of The Osa

Amphibians of the Osa
Reptiles of the Osa
Snakes of the Osa

We will be adding more guides based on the latest scientific observations, so please check back soon!