Christmas boobook lores and throat, yellow eyes, legs and feet. It is approximately 26–29 cm in length and 130-190 grams in weight with the female slightly larger than the male. The double-noted hoot, "boo-book," has a clucking quality with the second note usually lower in pitch. The begging call of juveniles is a high-pitched trill. Vocalisations are similar to those described for the Southern Boobook "N. novaeseelandiae" and include individual variation in advertisement calls. This may be useful in estimating owl densities as radio-tracking can be impractical in some terrains. A recording, courtesy of Richard Hill and Owl Pages http://www.owlpages.com/sounds/Ninox-natalis-2.mp3 Its natural
Australasian College of Physical Scientists and Engineers in Medicine who are elected for two year terms. The local interests of the membership is represented by 6 individual branches, approximately corresponding to states: A number of specialty groups exist to represent membership interests within a number of specific areas: There are 4 levels of individual membership: The ACPSEM also provides a company associate membership for corporations. The ACPSEM Medical Research Foundation awards a number of regular prizes, including: Additionally, the college has presented the ACPSEM Distinguished Service Award to members who have made outstanding contributions to the college. Australasian College of Physical Scientists and Engineers in Medicine The Australasian College