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 boom defense and examination vessel in Darwin, and remained there until the end of World War II, with the exception of a refit in Brisbane between September 1942 and February 1943. "Kookaburra" received the battle honour "Darwin 1942-43" for her wartime service. On 15 January 1946, "Kookaburra" was paid off into reserve, was briefly recommissioned for a voyage to Sydney in 1950, and underwent conversion to a "Special Duties Vessel". "Kookaburra" was recommissioned again on 11 May 1956 as a survey and general duties ship. In July 1952, the ship visited Brisbane. During this visit, a paperboy delivering to the