TheHunter: Call of the Wild Wiki

"The blacktail unisex urine is an instant attractor to any blacktail deer in and around your hunting area. Fire out a couple of puffs, and wait for the blacktails to stop by. Since scents last longer than calls, this an a great choice when lure hunting."
― In-Game Description

The Blacktail Deer Scent is a type of lure that targets the olfactory senses of male and female Blacktail Deer. With the Who's Deer? skill, it also attracts the Coyote and Jackrabbit. As with all scent lures, the effective range is greatly affected by the speed and wind direction.