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Providing evidence to improve practice

Action: Distribute poison bait for predator control using dispensers Bird Conservation

Key messages

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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.

Supporting evidence from individual studies

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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.

Referenced papers

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. (2018) Bird Conservation. Pages 95-244 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2018. Open Book Publishers, Cambridge, UK.