Razzing ya on poop diameter CR 
Poop diameter might give a rough guess to size. I just don't believe it is very accurate.
Paw size is more accurate in estimating body size. 3" long coyote paw print, IMO puts that coyote on the large size. Potential 50 lb coyote on a fat day.
Yrs ago I {weighed & measured} some. As in length from chest to rump. As well as top of the shoulder to bottom of the front pad, for example.
24" high shoulder is a large coyote, 40 lbs +
You'll have to excuse my long term memory. Which is crap anymore.
Good shooting
