Bison Rut is in full effect🦬 Bison Rut (mating season) typically last from June-September. During this period the bulls are full of testosterone, more aggressive, and will challenge/test one another for mating rights. Their fights consist of butting heads and locking horns until one is overpowered. The rut is also coincidentally peak human tossing season for bison, do with that info what you will. #Bison | Rocky Boy Buffalo Project/Buffalo Child Ranch