![]() This research has provided critical baseline data required to address knowledge gaps listed in Recovery Plans for these species of black cockatoo. In addition, between species, movement varied as each species uses the landscape in different ways, depending on seasonal movements and ecological requirements. These results suggest that movement for the three black cockatoo species is region specific, driven by food resources in the landscape. Daily movement distances differed both between and within regions depending on habitat matrix, resulting in varying home range sizes. Riparian zones and roadside vegetation were shown to play a crucial role as foraging habitat and in providing connective landscape structures. These were closely associated with foraging habitat which mainly occurred as remnant vegetation in the landscape or as nature reserves. Results showed that key roosts sites for the three species predominantly occurred on public green space and private property. Linear mixed models were used to determine differences in movement across regions, revisitation analysis was used to identify key habitat sites, and an auto-corrected Kernel density estimator was used to estimate the home ranges. Tagged birds served as markers of flock movement once integrated into a wild flock of conspecifics, which was confirmed through means of behavioural change point analysis and field observations. Using a novel double-tagging telemetry method, this research, aimed to: investigate regional differences in movement of the three black cockatoo species endemic to Western Australia identify key roost and foraging sites for these species across regions and estimate home range sizes for flocks in resident areas, using a combination of GPS and satellite PTT tags. Historically it has been difficult to gain information on the movement ecology of psittacine species in Australia. ![]()
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