The widespread Australian Magpie Cracticus tibicen exhibits geographical variation in aspects of its sociality and demography. We conducted a 12-year investigation of a colour-banded population of a less well-known subspecies, the Western Magpie C.t. dorsalis, to increase understanding of this variation: this report focuses on breeding and productivity. Most female dorsalis magpies first bred only […]
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Showing 12 of 1617 documents
Showing 12 of 1617 documents
Recovery Round-up
Posted: 09/08/2022Seabird Islands: No. 14/1 – South Solitary Group, New South Wales
Posted: 21/07/2022Does vigilance effort differ between urban and nonurban Little Raven (Corvus mellori) populations?
Posted: 30/05/2022Vigilance is directed at predators and conspecifics that threaten survival, welfare or resource acquisition. It has commonly been argued that predators of birds may be less abundant in urban than nonurban environments, which should be reflected in a lower vigilance effort by urban prey species. However, the Risk-Disturbance Hypothesis proposes that prey species treat anthropogenic […]
Read MoreBreeding of the Regent Honeyeater in northern New South Wales in 1997
Posted: 17/05/2022The Regent Honeyeater Anthochaera phrygia is a critically endangered species and information on its breeding behaviour and success is valuable in relation to efforts to conserve the species. Nesting attempts by Regent Honeyeaters were documented at a single, well-known Regent Honeyeater site in the Bundarra-Barraba district, New South Wales, during August to November 1997. Of […]
Read MoreExpansion of Ardenna shearwater breeding colonies on Broughton Island after eradication of the European Rabbit and Black Rat
Posted: 17/05/2022Broughton Island, offshore from Port Stephens, New South Wales is one of the few sites off the Australian east coast where population estimates of shearwaters, using repeatable survey techniques, have been undertaken over an extended period. The most recent survey was undertaken in 2018, almost a decade after the total removal of invasive vertebrates. It […]
Read MoreA snapshot survey of Painted Honeyeaters in Weeping Myall Woodlands in New South Wales
Posted: 17/05/2022The Painted Honeyeater Grantiella picta is a threatened, nomadic species of shrublands and woodlands in eastern Australia, but its use of available habitat is poorly understood. The species’ spatial ecology in the endangered, highly fragmented Weeping Myall, Acacia pendula Woodlands of New South Wales, an important habitat for its foraging and breeding, was studied at […]
Read MoreA local scale evaluation of spatial sampling bias in the Atlas of Australian Birds
Posted: 17/05/2022The consequences of volunteers freely choosing sampling locations in ‘citizen science’ projects need to be recognised. This study examined local (‘patch’) scale spatial sampling patterns in the Atlas of Australian Birds and then compared reporting rates (i.e. the proportion of sampling units in which a given bird species was present) from a sample of atlas […]
Read MoreForaging and reproductive behaviour of the Dusky Megapode in Halmahera, North Maluku, Indonesia
Posted: 13/04/2022Dusky Megapodes, Megapodius freycinet occur in Southeast Asia, but their foraging and reproductive behaviours are very poorly known. The aim of this research was therefore to document some aspects of these traits in the wild. The study was conducted in Halmahera, Indonesia at Simau from July-August 2014 and Tabadamai from January-May 2015. Qualitative observations and […]
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