A whitetail buck may lose up to ¼ of his body weight during the rut. His sole focus is breeding with as many receptive does as he can. Why not give him what he’s been waiting for? Estrus scents are by far the most popular type of deer lure sold; however, they are not all created equal. Freshness, how it’s bottled and how it’s stored can all affect how effective your deer pee will be.