 Local veterinarians are keeping a close eye on the bird flu after the U.S. Department of Agriculture reports 21 cats in nine states have tested positive. Rock County Public Health Supervisor Kelsey Cordova says, fortunately, H5N1 does not appear to be as fatal for mammals as it is for poultry. Cordova says if you're concerned your dog or cat may have contracted the bird flu, you should contact your veterinarian before bringing them in.