Posted: 29/11/2015
Author(s): Debus, Baker-Gabb and Aumann
The breeding behaviour of the Red Goshawk Erythrotriorchis radiatus was studied in Kakadu National Park, Northern Territory, in 1987–89. Two active nests, for all or part of the breeding cycle from courtship and nest-building (April) to the post-fledging period (October), were observed in timed observation sessions. One nest-building male collected sticks at a rate of […]
Posted: 29/11/2015
Author(s): Kathryn Teare Ada Lambert and Caroline J. Blackmore
We investigated sexual dimorphism in Grey-crowned Babblers (Pomatostomus temporalis temporalis) focusing on whether morphological measurements can be used as a means to sex individuals in the field. Head-bill length, body mass and wing length data from two separate studies were analysed for sex differences and to determine whether Grey-crowned Babblers differed morphologically between populations. Head-bill […]
Posted: 18/08/2015
Author(s): Peter Smith and Judy Smith
The diet of the Sooty Owl Tyto tenebricosa was studied at Blaxland in the lower Blue Mountains, New South Wales, by analysis of regurgitated pellet material. Small and medium-sized mammals were the most common prey, as also documented by previous studies. However, birds and reptiles contributed an unusually high proportion of the diet, especially the Pink-tongued Skink Cyclodomorphus […]
Band recoveries to 2012 were analysed for the White-bellied Sea-Eagle Haliaeetus leucogaster (n = 11, recovery rate = 6%), Wedge-tailed Eagle Aquila audax (n = 55, recovery rate = 7%) and Little Eagle Hieraaetus morphnoides (n = 30, recovery rate = 9%) in Australia (for Wedge-tailed Eagle eastern Australia only). Juvenile/immature Sea-Eagles (n = 8) were recovered within […]
Posted: 18/08/2015
Author(s): Peter Coyne, Beryl Evans, Owen Evans and Honey McCoy
Tasman Masked Booby Sula dactylatra tasmani pulli were banded in breeding colonies on two islands five kilometres apart in the Norfolk Island Group from 1975 to 2010: 7755 young were banded on Nepean Island and 3372 on Phillip Island. The number of pulli banded was used to estimate colony size for Nepean Island. The size of this […]
Posted: 18/08/2015
Author(s): Felicity Hatton, Jerry Olsen and Bernd Gruber
Despite considerable knowledge on aspects of the ecology of the Wedge-tailed Eagle Aquila audax, information on home range size has been limited to estimates based on visual observations and nesting densities. This study aims to provide a methodological and theoretical framework for the potential applications and recommendations for the use of satellite tracking to research eagles. In November […]
