Pierce and Westbrooke (2003): Call count responses of North Island brown kiwi to different levels of predator control in Northland, New Zealand.

Pierce R.J.; and Westbrooke I.M. 2003. Call count responses of North Island brown kiwi to different levels of predator control in Northland, New Zealand. Biological Conservation 109: 175–180.

This paper evaluates whether there are any trends in call counts that relate to predator control and advocacy in and around 23 kiwi listening stations monitored in Northland since 1995. Both predator and advocacy effort were rated on a 0ñ3 scale at each listening station, and kiwi calling rates analysed in a generalised linear model. An ANOVA indicated a positive response of call counts to predator control. There was a weaker relationship with advocacy, but because predator control and advocacy are correlated, it was not possible to separate their effects. Overall, the analysis suggested that this kind of management is benefiting kiwi in Northland.