The park has a ranger station which is open for visitors from 8 am to dusk, and has potable water and restrooms. The Palo Verde Biological Station is on site operated by the Organization for Tropical Studies. A major feature of the park is the density and variety of bird species, a major factor in the creation of the reserve, due in part to its diverse ecology, with 15 topographical zones from evergreen forests to mangrove swamps. Birds spotted regularly in the park include great curassows, scarlet macaws, white ibis, roseate spoonbills, anhingas, jabirus, and wood storks.