The visual alert for placement on free-range animals includes active and/or passive lighting to alert motor vehicle drivers of such animals crossing the roadway when traveling through open rangeland. The visual alert is a sleeve having fins extending radially therefrom, the fins having reflective and/or active lighting elements thereon. Power for active lighting is provided by electrical batteries that are recharged during daylight. The permanently installed sleeve may be formed as a circumferentially closed distensible unit that passes over the hoof of the animal, or as an open sheet that is rolled about the leg of the animal and permanently secured by plastic ties or other suitable elements. The sleeve is lined with a non-abrasive material to preclude injury to the animal during long term wear.
