Increased predation on pukeko eggs after the application of rabbit control measures

We have been studying the social behaviour and ecology of pukeko (Porphyrio porphyrio) for over five years at a study site in the lower Taieri River, Otago New Zealand. After an application of rabbit poison in 1995 and the illegal release of rabbit haemorrhagic disease (RHD) in 1997, there was strong anecdotal evidence that rabbit (Oryctolagus cuniculus) abundance on and around our study site had been substantially reduced.