The plumage development of the Little Pied Cormorant Microcarbo melanoleucos in Western Australia is documented from hatchling to fledgling over a period of 60 days. The transition from hatchling to fledgling progresses rapidly. Key plumage features become visible during the nestling period, such as the white rim on the leading edge of the wing, a […]
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Showing 12 of 1617 documents
Showing 12 of 1617 documents
Shorebird use of the Port of Brisbane, Queensland: insights from 30 years of monitoring
Posted: 14/10/2024For over 30 years, Port of Brisbane (Port) lands on Fisherman Island have been used as high tide roosting habitat by large numbers of shorebirds. Since January 2003, the Queensland Wader Study Group has been commissioned by Port of Brisbane Pty Ltd to undertake regular (typically monthly) counts of birds at roost sites on Fisherman […]
Read MoreGrey Butcherbird killing an adult Little Lorikeet and a review of adult avian prey of butcherbirds and Pied Currawongs
Posted: 25/07/2024There are few published records of predation of adult birds in Australia by animals other than raptors and introduced carnivorous mammals. This note provides photographic proof of the first known instance of a Grey Butcherbird Cracticus torquatus attacking and killing a wild adult parrot, a Little Lorikeet Glossopsitta pusilla. While the median mass and size […]
Read MorePost-fledging observations of Ospreys in Western Australia
Posted: 25/07/2024Juveniles from three pairs of Ospreys Pandion haliaetus in Western Australia were monitored during the post-fledging period (2022-2024). The study focussed on the time the juvenile birds remained in the vicinity of the nest, when they became proficient in catching fish and their departure time from the nesting area. These details were compared with findings […]
Read MoreThe trophic structure of the breeding raptor guild of the Canberra region and its relationship with other Australian guilds
Posted: 21/06/2024This study examines the trophic structure of the raptor guild near Canberra, Australia, and also provides the first comparison of the trophic structure, dietary diversity, and overlap of three breeding raptor guilds across the Australian subcontinent. The study guild was very diverse in its diet, as shown by its trophic structure, with only three clear […]
Read MoreChanges in shorebird use of the Maroochy River estuary, Sunshine Coast, Queensland over 25 years
Posted: 14/04/2024The lower Maroochy River estuary is surrounded by densely populated areas of Maroochydore, a rapidly growing population centre on the Sunshine Coast in south-east Queensland, Australia. To inform management of shorebirds, we conducted surveys of shorebird use of the estuary over three seasons 2020/21 to 2022/23 and reviewed long-term monitoring data of the Queensland Wader […]
Read MoreGrey Falcon – ecological insights from resightings of colour-banded and satellite-tagged individuals
Posted: 30/03/2024The Grey Falcon Falco hypoleucos is a rare Australian endemic bird of prey confined to the arid/semi-arid zone of the continent. The species is listed since 2020 as threatened under the EPBC Act 1999, category Vulnerable. Before the commencement of this ongoing research project in 2004 the species was known largely from anecdotal information and […]
Read MoreFirst record of Carnaby’s Cockatoo raising two broods in one season
Posted: 06/03/2024Here we report on a female Carnaby’s Cockatoo Calyptorhynchus latirostris (subgenus Zanda) that successfully bred twice in the 2022–2023 breeding season at Cataby, Western Australia. This is the first record of a cockatoo raising two broods in the one season.
Read MoreInfluence of hunting grounds on prey taken in adjacent territories of breeding Southern Boobooks Ninox boobook in the Australian Capital Territory
Posted: 28/02/2024This study presents the first evaluation of the effects of location of hunting grounds on dietary composition of breeding Southern Boobooks Ninox boobook, as a part of our long-term monitoring program. We divided a set of adjacent breeding territories into two groups: owls hunting in city suburbs, parks and urban areas (Suburb hunters); and owls […]
Read MoreFeeding ecology of the raptor guild of the Canberra Region
Posted: 04/01/2024We studied the feeding ecology of twelve species of breeding raptors near Canberra, providing the first report of the food habits of a full raptor guild. There was no major dominant prey species for the overall guild. Some raptors had a very specialized diet: Black-shouldered Kites Elanus axillaris (House Mice Mus musculus); Australian Hobbies Falco […]
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