Australasian Bitterns are large, stocky birds.

They live in freshwater wetlands with tall, dense vegetation, estuarine and brackish wetlands and occasionally flooded pastures. They depend on wetland habitat.

The Bitterns have a loud, foghorn-like call and feed on aquatic animals such as frogs, eels and freshwater crustaceans. They are elusive, partly nocturnal birds.

You can spot them at Deep Creek and Narrabeen Lagoon.

 Australasian Bitterns are endangered in both Australia (Environmental Protection and Biodiversity Conservation Act, 1999) and New Zealand.