The first WHSRN site in the Caribbean! The 505-hectare (1,249-acre) Cabo Rojo Salt Flats is an area of saline lagoons, salt flats, and mangrove swamps within the Cabo Rojo National Wildlife Refuge in southwest Puerto Rico. This WHSRN Site of Regional Importance supports 5.3% (80 individuals) of the world population of the tenuirostris subspecies of Snowy Plover (Charadrius alexandrinus) and 2.5% (151 individuals) of the world population of Wilson’s Plover (C. wilsonia). This Important Bird Area hosts a total of 28 shorebird species.