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 Arachnological Society Australasian Arachnological Society The Australasian Arachnological Society is a body dedicated to promotion of knowledge and study of arachnids (spiders and other 8-legged arthropods) in the Australasian realm, which includes Australia, New Zealand, South-east Asia, Oceania and the Pacific Islands. Membership is open to all individuals and scientific institutions. The Society maintains a large library of reference books and scientific journals housed at Queensland Museum. The society is informally structured to promote the study of arachnology to amateurs, students, professionals and institutions. The Society was founded by Robert Raven in 1979. The first national meeting was held in 1989 as