Lots of moose running around here in NH and you can tell the difference without chewing them. I tried what nub said and it doesn' t work, he only messing with ya.....you can only blow bubbles with bear crap
The moose crap around here is about the size of the robins egg (somethimes slightly smaller) and are brown not blue, now that' s for an adult moose. Look around at the trees for the bark being stripped off. They do it with their teeth so you should see grooves about 1/4" wide. Their rubs are just like a buck rub but they start about 5' up the tree and as high as 7' up. I' m 6' tall and last year couldn' t touch the top of a moose rub standing flat on my feet.