The Eastern Koel also known as the Common Koel is migratory and arrive in Australia from south-east Asia to breed In late September and early October.
The Eastern Koel lays a single egg in the nests of other bird species such as the Red Wattlebird, Friarbirds, Magpie-lark and Figbirds. Once the chick has hatched it forces the other eggs or chicks out of the nest. The smaller parent birds have a hard job keeping up the food supply to the young Koal that will grow to nearly twice their size.
They feed primarily on fruits.