The Birdsbesafe Cat Collar Cover will help songbirds see your hunting cat because birds notice bright colors like these. Birds see these colors quickly and easily. The bird then usually has time to fly away to safety. Most cat owners find that their cat catches significantly fewer birds as a result. Some birds may still be caught. No guarrantee is made that all birds be protected from all cats, but in 2015, a scientific study was published that showed an 87% reduction in birds killed by cats wearing our product. (Use with the included breakaway cat collar or your preferred cat collar)