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
Egg Collecting and Bird Life of Australia Egg Collecting and Bird Life of Australia Egg collecting and bird life of Australia is a quarto-sized book authored and published in 1907 by field ornithologist and oologist Sidney William Jackson. The full title text reads: "Egg collecting and bird life of Australia. Catalogue and data of the "Jacksonian oological collection", illustrated with numerous photographs depicting various incidents and items in connection with this interesting study, which has been the life work of the Author." The book is essentially a 171-page catalogue of the collection of nearly 2000 eggs, representing over 500 species of Australian birds, accumulated by Jackson from