I stumbled upon this helpful bit of information while looking for redworms the other day in a dry creekbed. Crawdads while dig holes under rocks in a creek bed and stay there even when its been dry for weeks! They are really easy to find all it takes is lifting up a couple rocks and digging in the holes. I found about 5-6 of them in a 10ft area. I have tried this in multiple creeks and it never fails even when the creek is dry the crawdads are still there. Hope this helps its an easy way to get some free bait.