Southern boobook smallest owl on the Australian mainland, the southern boobook is long. The nominate subspecies is the largest. It has short, rounded wings and a short tail, with a compact silhouette in flight. Southern boobooks on the Australian mainland follow Bergmann's rule, in that birds from cooler and more southerly parts of the range tend to be larger. Thus, birds from the Canberra region weigh around while those from the Cape York Peninsula and Broome are around . Females tend to be a little larger and heavier than males, with males weighing and females . The southern boobook has generally dark
Australasian Wireless Australasian Wireless Australasian Wireless relates to two separate entities Australasian Wireless Limited and Australasian Wireless Company Limited. The former obtained an option to acquire the exclusive rights to the Telefunken wireless telegraphy system in Australasia, the latter acquired those rights and with public capital developed a firm which was successful in supplying wireless telegraphy equipment to shipping in Australasian waters and the establishment of Australia's first coastal radio stations. When the Australian Government decided to complete the remainder of the coastal network using the Balsillie wireless system manufactured by Father Archibald Shaw, AWCL merged with Marconi interests to form Amalgamated