What is the best free-feeding system for furrow-poisoning the rabbit?

Abstract

The results of enclosure experiments are given in which the natural foraging behaviour of rabbits, and their reaction to a furrow and to free-feeding. were observed. Labelling of the bait with 1311, and use of spotlights at night, enabled detailed information on the feeding and behaviour of individuals to be obtained. Many rabbits move and feed within a restricted area, which may not be crossed by the furrow. The problem of furrow-poisoning is one of time-to get the maximum number of individuals to take bait without undue build-up of appetite in those which first do so. It is recommended that the furrow be left empty for several days and that intermittent free-feeding should follow at similar intervals. Poisoning should continue for several nights. It is suggested that reduction of rabbit numbers to near-eradication level could be achieved by repetitive use of this method of control at short intervals.