I know this has been covered extensively on BYC but I was hoping someone from my neck of the woods could comment. Background: I live in Northeastern CT. I've had 10 chickens for almost 6 months. They have a raised 8x6 coop using the deep litter method with pine shavings. The run is covered, secure with hardware cloth, and measure 14x16. It gets morning sun and remains dry during rain with the exception of a few inches of moisture along the edges but no puddling. Over the past 6 months the chickens have scratched all the native dirt away to the point where they are now working their way beneath the run perimeter. They have probably scratched away 4+" of dirt. My chickens do not free range since rad-tail and cooper's hawks constantly circle my property. Question: I need to replace the missing dirt. I was thinking about sand but I've read so many conflicting reports. Would I be better off with plain topsoil or are there other suggestions out there. Thanks!