Sanders and Maloney (2002): Causes of mortality at nests of ground-nesting birds in the Upper Waitaki Basin, New Zealand: a five-year video study.
Sanders, M.D.; Maloney, R.F. 2002. Causes of mortality at nests of ground-nesting birds in the Upper Waitaki Basin, New Zealand: a five-year video study. Biological Conservation 106: 225-236.
This study used video cameras to obtain definitive evidence of the causes of mortality at nests of three species of ground-nesting birds. Unlike most video studies, this study videoed sufficient nests to draw conclusions about the relative impacts of various predators. Seventy-seven lethal events were recorded at 172 nests. Cats, ferrets, and hedgehogs accounted for 43, 19, and 18% of mortality at nests. Cats were the only predator to take adult birds. Stoats, avian predators, and other causes of mortality each accounted for <4% of lethal events. The paper also reports on the duration and diurnal timing of predation.
This study used video cameras to obtain definitive evidence of the causes of mortality at nests of three species of ground-nesting birds. Unlike most video studies, this study videoed sufficient nests to draw conclusions about the relative impacts of various predators. Seventy-seven lethal events were recorded at 172 nests. Cats, ferrets, and hedgehogs accounted for 43, 19, and 18% of mortality at nests. Cats were the only predator to take adult birds. Stoats, avian predators, and other causes of mortality each accounted for <4% of lethal events. The paper also reports on the duration and diurnal timing of predation.
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