The Guam tall is flightless bird found on the island of Guam. It build a shallow nest of the ground and lays eggs throughout the year. there are no native species of snakes on Guam so the Guam rail had no experience with snakes predators until the brown tree snake was accidentally introduced sometime between 1944 and 1952. These snakes which eat a wide variety of animal species quickly establish a large population on Guam