Mature Buck Lure with Gland Secretions for Rut Season UseBlack Widow Dominator Deer Lure features fresh Northern whitetail deer urine with tarsal and interdigital gland secretions. Collected from mature bucks 3 1/2 years and older this lure is intended for use from mid September through the end of the rut. Fresh Northern whitetail deer urine Includes tarsal gland secretions Includes interdigital gland secretions Collected from mature bucks Use from mid September through rut