Dwellers of various environments South America South America Amazonia Number of species: 100 More Atlantic forest Number of species: 126 More Cerrado Number of species: 57 More Pantanal Number of species: 62 More Southern Hemisphere Seas Number of species: 18 More Addendum. IUCN Red List: Threatened species Number of species: 12 More Addendum. At the feeder Number of species: 16 More