The Birdsbesafe Cat Collar Cover will help songbirds see your hunting cat because birds notice bright colors like these. Birds see them as "more bright" and birds see them 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. In 2015, an independent scientific study was published that showed an 87% reduction in birds caught by cats wearing our product in the U.S. location of the study. (Cat collar must be purchased separately or use your own.)