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
Australian Silver Kookaburra Australian Silver Kookaburra The Silver Kookaburra is a silver bullion coin originating from Australia, and produced at the Perth Mint starting in 1990. The coins were .999 fine silver until the 2018 edition, which increased in purity to .9999 silver. While the obverse of the coin always depicts Queen Elizabeth II, the reverse side changes every year, always featuring a kookaburra, a bird native to Australia. Due to the yearly design change and limited production of the one ounce coins, they have higher collectible value than some other bullion coins. The Perth Mint generally ships the coins in individual plastic