Australasian darter Anhinga novaehollandiae

Large, slim waterbird with distinctive long straight bill. Swims snake-like with body submerged, and just its head and neck protruding from the water. In flight it can sometimes look like a large raptor, especially when soaring, but note the long neck and bill. Common around waterways, where it perches on trees and branches above the water, often holding its wings out to dry.