The Australian ringneck (Barnardius zonarius) is a parrot native to Australia. Except for extreme tropical and highland areas, the species has adapted to all conditions. Traditionally, two species were recognised in the genus Barnardius, the Port Lincoln parrot (Barnardius zonarius) and the mallee ringneck (Barnardius barnardi), but the two species readily interbred at the contact zone and are now considered one species. Currently, four subspecies are recognised, each with a distinct range.