Action Synopsis: Bird Conservation About Actions

Distribute poison bait for predator control using dispensers

How is the evidence assessed?
  • Effectiveness
  • Certainty
  • Harms
    not assessed

Study locations

Key messages

A controlled study in New Zealand found that survival of South Island robins Petroica australis australis was higher when brodifacoum was dispensed from bait feeders compared to where bait was scattered.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A controlled study in three southern beech Nothofagus stands on South Island, New Zealand between August and November 1996 (Brown 1997) found that survival of South Island robins Petroica australis australis during predator removal operations was higher when brodifacoum was dispensed from bait feeders than in a site where 3 kg/ha poison was scattered and left exposed on the forest floor (29/30 birds surviving, 97% vs. 12/23 birds surviving, 52%). Survival in a control site, with no poisoning, was higher than in the broadcast site but not significantly different from the bait feeder site (18/21 birds surviving, 86%). Feeders were designed to allow black rats Rattus rattus and house mice Mus musculus to enter and retrieve baits, but not brush-tailed possums Trichosurus vulpecula.

    Study and other actions tested
Please cite as:

Williams, D.R., Child, M.F., Dicks, L.V., Ockendon, N., Pople, R.G., Showler, D.A., Walsh, J.C., zu Ermgassen, E.K.H.J. & Sutherland, W.J. (2020) Bird Conservation. Pages 137-281 in: W.J. Sutherland, L.V. Dicks, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2020. Open Book Publishers, Cambridge, UK.


Where has this evidence come from?

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Bird Conservation

This Action forms part of the Action Synopsis:

Bird Conservation
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What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

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