Domestic cats kill an estimated 55 million birds annually in the UK, representing a significant source of preventable wildlife mortality.
Individual birds killed by cats experience the fear and pain of the hunt and capture process. Population-level effects are most significant for already-declining species where each individual bird represents an important contribution to recovery. Measures that reduce cat predation including indoor periods during dawn and dusk hunting peaks, bells and visual deterrent collars, and keeping cats in during fledgling season provide meaningful welfare benefit to wildlife.