as 5shot said where they feel safe,I have found deer usually will take a dump when they get up to move around or feed. so when you find an area with a lot of droppings,you don't want to hunt there. hunt the edges of that area.if you hunt there beeding area they will move.

I am not a hunter I am a whitetail population reduction specialest

remember keep your back to the sun, your knife sharp, and your powder dry.