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
Tui (bird) agape and throat tufts throbbing. However, ongoing research has so far failed to detect ultrasound within tui vocalisations. Tui will also sing at night, especially around the full moon period. Tui (bird) The tui (Māori: tūī; "Prosthemadera novaeseelandiae") is an endemic passerine bird of New Zealand, and the only species in the genus Prosthemadera. It is one of the largest species in the diverse Australasian honeyeater family, and one of two living species of that family found in New Zealand, the other being the related New Zealand bellbird. The species has a wide distribution in the archipelago, ranging from the