Pond Boss Forums POND CONSTRUCTION Selecting a site Anyone deal with crayfish digging in their dike

That's one of the reasons Dr. Perca recommends being sure what mud bugs you add and NOT introducing species not already found in an area.

I have gone over some crawdad identification material Cody recommended, and I can state that identifying different species of crayfish requires discriminating parts of them that I didn't even know they had.