Some aspects of the ecology of an urban Corvid : The Australian Raven (Corvus coronoides) in metropolitan Perth

TL;DRAbstract

The relatively recent and noticeable increase in abundance and distribution of the Australian Raven (Corvus coronoides) in the Perth metropolitan area, has led to an increase in the amount of problems associated with the bird resulting in a need to quantify its ecology in an urban context. This research documented the abundance and distribution of the raven, possible reasons for its increase, the basic nesting characteristics, peoples attitudes, basic morphology, food items and problems associated with the bird in Perth and Kings Park. These aims were achieved by using observational field data, culled birds, a newspaper questionnaire and Geographic Information Systems. Results showed that the population of the raven in Perth has increased significantly since 1977, and that the bird was found in higher densities where remnant vegetation had been cleared, and in older suburbs that had high numbers of tall trees. Ravens nest in tall trees between ten and twenty five metres in well covered

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