Carcass Island is one of the Falkland Islands, lying north west of West Falkland and south east of the Jason Islands. It was named for the ship HMS Carcass , which surveyed the island in 1766.
The island has no rats, and as a result has a wide variety of birdlife including night herons , as well as seals and penguins. It is currently run as a sheep farm. Its small settlement, lying on Port Patterson on the south west coast, is also known for its gardens, and has a small shop.
The island is known as Isla del Rosario in Spanish.