Use collar-mounted devices to reduce predation
Overall effectiveness category Unknown effectiveness (limited evidence)
Number of studies: 2
Background information and definitions
Cat collars can be modified to carry either simple bells or more complex sonic alerts which scare birds before cats can catch them. Another option is a ‘bib’ which hangs in front of the cat’s legs, preventing them from hunting effectively.
Supporting evidence from individual studies
A replicated, randomised and controlled study in Perth, Australia in November-December 2005 (Calver et al. 2007) found that wearing a ‘CatBib™’ “pounce protector” (a neoprene flap that hangs from a collar in front of a cat’s front legs, acting either as a visual warning or as a barrier to pouncing) for three weeks, reduced the number of cats catching birds by 81% compared to when the same cats were not wearing the ‘CatBib™’ (5 vs. 26; n = 56 cats). The average number of birds captured per cat was also significantly lower (0.29 vs. 0.88). Adding a bell to the ‘CatBib™’ did not further reduce hunting.Study and other actions tested