At stockton state university i studied deer ecology for four years from studies showed bucks bed longer than does. In large enclosed research property in atlanta georgia had bucks that bed so long and became nocturnal,if they didn't have tracking devises ,they wouldn't of think they survived.I do believe that this is the reason for clumped stool and only seen does pellet form droppings. It is just a theory,theories can have different variables...[up]