There is no doubt. All the great anglers and biologist and so forth will agree that mature bass love to feed on crawfish.
Not a lot of people realize just how much crawfish are actually out there. While many thing they are almost non existant they are very wrong. You can find crawfish in just about all bodies of water including lakes, rivers, streams, ponds and even dug outs.
Fishermen love catching bass in crawfish rich areas. It seems those bass become much bigger in much less time. The advantage for the bass is they dont need to exert a lot of effort to catch the crawfish. It just seems that bass feeding on crawfish is a win win situation.