Blue-winged kookaburra highly aggressive in the first week of life, and the youngest chick is often killed by the older chicks during this period. Once fledged, juvenile birds need to be taught how to hunt by their parents for a further 6–10 weeks before they can properly fend for themselves. The red goshawk and rufous owl prey upon the blue-winged kookaburra. Adult birds are also slow flyers and vulnerable to being hit by cars on country roads. Nests are susceptible to raids by Olive Pythons, quolls and goannas. Blue-winged kookaburra The blue-winged kookaburra ("Dacelo leachii") is a large species of kingfisher native
HMAS Kookaburra HMAS Kookaburra HMAS "Kookaburra" (A331) was a "Net"-class boom defence vessel of the Royal Australian Navy (RAN), which served during World War II. "Kookaburra" was of three ships ordered by the Royal Australian Navy for use as boom-net defence vessels. She was laid down by the Cockatoo Docks & Engineering Company at Cockatoo Island Dockyard in Sydney on 4 April 1938, launched on 29 October 1938, and commissioned into the RAN on 28 February 1939. Originally used as boom defence ship and anti-submarine training vessel in Sydney, "Kookaburra" was transferred to Darwin in April 1940. The ship served as a