can someone give me any info on parasites in cottonmouths?? i go to a cottonmouth den every spring and fall in southern illinois. all the cottonmouths there have a large amount of parasites visible in the roof of their mouth. there is another place i go not far from there that they either have very little , or none at all. then at La-Rue about 60 miles away, i basically see none.. any comments??