The Laysan duck (Anas laysanensis), also known as the Laysan teal, once lived across the entire Hawaiian archipelago, but today survive only on Laysan Island, one of the Northwestern Hawaiian Islands. It currently has the most restricted range of any duck in the world. A dabbling duck, it is teal-sized and dark brown, with a prominent white eye-ring. It prefers land and mud flats but does also habit shallow water. In 1912 the population consisted of 7 adults and 5 juveniles on Laysan Island. Today there are around 650 individuals.