I have to agree, I always look at the ears first. Their ears are the same size from birth so the smaller the ears look the larger the head is. The low slung belly is also a good one if you have a clear broadside view of the bear. I tend to stay away from the long snout method because I have seen some monster "dog" bears that weigh well over 500 but still have long noses. I have also seen some pretty small "hog" bears with really short noses but only going 200.