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Assessing the effectiveness of the Birdsbesafe anti-predation collar cover in reducing predation on wildlife by pet cats in Western Australia

By C. M. Hall, J. B. Fontaine, K. A. Bryant, M. C. Calver

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Many pet cats hunt and, irrespective of whether or not this threatens wildlife populations, distressed owners may wish to curtail hunting while allowing their pets to roam. Therefore we evaluated the effectiveness of three patterned designs (simple descriptions being rainbow, red and yellow) of the anti-predation collar cover, the Birdsbesafe (BBS), in reducing prey captures by 114 pet cats over 2 years in a suburban Australian context. The BBS offers a colourful indicator of a cat's presence and should therefore alert prey with good colour vision (birds and herpetofauna), but not most mammals with limited colour vision. We also interviewed the 82 owners of cats in the study about their experience using the BBS and their assessment of the behavioural responses of their cats. In the first year of the study, which focused on the effectiveness of different BBS colours, captures of prey with good colour vision were reduced by 54% (95% CL 43-64%) when cats were wearing a BBS of any colour, with the rainbow and red BBS more effective than the yellow when birds were prey. Captures of mammals were not reduced significantly. The second year assessed the rainbow BBS alone, and those data combined with rainbow data in the first year found a significant reduction of 47% (95% CL 43-57%) in capture of prey with good colour vision, with no effect of differences across years. We found no evidence that cats maintained a lower predation rate once the BBS was removed. Seventy-nine per cent of owners reported that their cats had no problems with the BBS and another 17% reported that their cats adjusted within 2 days. Fourteen owners reported that their cats spent more time at home and ate more while wearing the BBS. Two owners reported their cats stayed away from home more while wearing it. Sixty-four per cent of owners using the red collar, 48% using rainbow and 46% using yellow believed that it worked. Overall, 77% of owners planned to continue using the BBS after the study had finished. The BBS is an option for owners wishing to reduce captures of birds and herpetofauna by free-ranging cats, especially where mammalian prey are introduced pests. To date, the BBS is the only predation deterrent that reduces significantly the number of herpetofauna brought home. It is unsuitable where endangered mammalian prey or large invertebrates are vulnerable to predation by pet cats.

Publication Title Applied Animal Behaviour Science
Volume 173
Pages 40-51
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2015.01.004
Language English
Author Address School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia 6150,
Cite this work

Researchers should cite this work as follows:

  1. Animal behavior
  2. Animals
  3. APEC countries
  4. Australasia
  5. Australia
  6. Birds
  7. Carnivores
  8. Cats
  9. Commonwealth of Nations
  10. Developed countries
  11. Efficacy
  12. Hunting
  13. Invertebrates
  14. Mammals
  15. Oceania
  16. OECD countries
  17. peer-reviewed
  18. Pets and companion animals
  19. predation
  20. prey
  21. Reptiles
  22. urban areas
  23. vertebrates
  24. vision
  25. Wild animals
  26. wildlife
  1. peer-reviewed