Color, moistness (shinny or dull), an' tenderness are the main ways. Also, you gotta notice how they're laid out. Is the elk movin' and how fast? Does he pause to do his business? Is he lookin' back as he's doin' it? Is he on rocks (elk do this to lose somebody trackin' 'em, but don't control their poop shoot when they're doin' it). What is the elk eatin' (lil' balls or patties)? Is it a bull or a cow (shape, size)?

BJ