Publications
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Showing 12 of 1617 documents
Showing 12 of 1617 documents
The Evolution of Tree-nesting and the Origin of the Spotted Harrier
Posted: 02/10/2021It is suggested that the origin of harriers Circus spp. was in the southern hemisphere and not in the north as has been previously proposed. Data are presented to show that Spotted Harriers Circus assimilis were probably once ground-nesters like other harriers and that they have subsequently become more aboreal.
Read MoreFurther Notes on Visits to Islands of the South Coast of Western Australia
Posted: 02/10/2021In 1981 and 1982 I made 33 visits to 23 islands off the south coast of Western Australia to obtain details of breeding seabirds. Appendix I lists the islands visited and the dates of each visit. Much of the information obtained during the 1981 visits has been published in various papers. A list (Appendix II) […]
Read MoreMorphometric Data and Dimorphism Indices of some Australian Raptors
Posted: 02/10/2021Measurements of wing length, exposed culmen length and weight are given for 20 of Australia’s 24 diurnal raptors. The degrees of sexual dimorphism exhibited by the raptor species are calculated and discussed. Corrigendum Page 62. Table l. The mean weight of female Little Eagle, should read 1110 g not 111.0 g.
Read MoreResults of Banding White-faced Storm-Petrels Pelagodroma marina at Mud Islands, Victoria
Posted: 02/10/2021White-faced Storm-Petrels Pelagodroma marina were banded almost annually at Mud Islands between 1955 and 1980. Bands were applied to fledglings removed from burrows and to free-flying birds captured in mist nets. Two percent of the 12 652 banded birds have been recovered, mostly at Mud Islands during subsequent breeding seasons. Recoveries were heavily biased by […]
Read MoreWhat are Your Preferred Numbers?
Posted: 02/10/2021Data Exchange: Little Eagle Hieraaetus morphnoides
Posted: 02/10/2021Recovery Round-up: Volume 8 – Issue 2
Posted: 02/10/2021Albatross Studies – Kangaroo Island, South Australia. Summary of Progress 1971-1983
Posted: 02/10/2021Results from banding and retrap data for three species of albatrosses and two species of giant petrels off Kangaroo Island, South Australia are presented. Methods of capture and marking are discussed.
Read MoreAgeing and Moult Variations in Mistletoebirds
Posted: 02/10/2021Three age classes of Mistletoebirds Dicaeum hirundinaceum are defined and data are presented which allow most Mistletoebirds to be separated by plumage characteristics into one of these age classes. Most (30 of 44 = 68%) male Mistletoebirds shed the tertial flight feathers and the greater median and lesser coverts of the wing during post-juvenile moult. […]
Read MoreBreeding Bird Censuses: An Evaluation of Four Methods for use in Sclerophyll Forest
Posted: 02/10/2021Four methods were used to census birds in forest and woodland near Bombala on on the Southern Tablelands of New South Wales. None was completely satisfactory, but a modified strip transect procedure provided repeatable estimates of the relative abundance of most species. The most accurate estimates of the abundance of individual species were obtained by […]
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