Species of note include: bald eagles, red knots, painted buntings, roseate spoonbills, black-necked stilts, and wood storks.
Backing the island's beaches are pristine dunes which provide nesting habitat for various shorebirds such as: piping plovers and American oystercatchers.
From May to September, Little St. Simons Island's beaches are patrolled daily and signs of loggerhead sea turtle nesting are documented.
Several freshwater ponds provide habitat for tree frogs, alligators; and supply drinking water for other animals including the European fallow deer.
Sport fishing in the tidal creeks and surf can be very productive for those in search of redfish, black drum, flounder and speckled trout.