Norfolk boobook mated with the female with the pair producing fledged chicks in 1989 and 1990. The original female disappeared in 1996 but, by then, there was a small hybrid population of about a dozen birds. These birds and their descendants continue to exist on the island. Norfolk boobook The Norfolk boobook ("Ninox novaeseelandiae undulata"), also known as the Norfolk Island boobook, Norfolk Island owl or Norfolk Island morepork, was a bird in the true owl family endemic to Norfolk Island, an Australian territory in the Tasman Sea between Australia and New Zealand. It is an extinct subspecies of the morepork ("Ninox
Australasian Hydrographic Society and gas industries, particularly off the north west coast of Western Australia and coal export facilities in Queensland have required a considerable increase in the provision of accurate and up to date hydrographic information. The attendant increase in trade, for example, has made improved navigation through sensitive area, such as the Great Barrier Reef critical. Hydrography also plays an important role in national security, border protection and humanitarian support. The Australasian Hydrographic Society endeavours to represent all interests in these domains. The Australasian Hydrographic Society consequently "aims to serve anyone with an interest in the science (and art)" of hydrography,