This park is the last of two known habitats of the Giant Swallowtail Butterfly (Papilio homerus), the largest butterfly in the Western Hemisphere and also the habitat for the endangered Jamaican Blackbird (Neospar nigerrimus), a refuge for the Jamaican Boa (Epicrates subflavus) and the Jamaican Hutia (Geocapromys brownii).
Papilio ulysses | Papilio machaon | Papilio | Papilio rutulus | Papilio rex | Papilio ophidicephalus | Papilio glaucus | Papilio cyproeofila | Homerus of Byzantium | Papilio xuthus | Papilio polyxenes | Papilio polytes | Papilio mayo | Papilio homerus | Papilio gallienus | Papilio erithonioides | Papilio echerioides | Papilio demoleus | Papilio canadensis | Papilio appalachiensis | Papilio antimachus | Papilio alexanor |