In my experience the rock hard dirt is just the top layer of mud/poo/goo from the rainy season that has dried into a hard crust. If you dig a pitchfork under it it will flake off in sections and there is normal dirt underneath. The good thing is, the chickens can't dig holes all over through the hard stuff. The bad news is... once it gets wet again, you have extra inches of goo that are going to mix in with the new goo and make a deeper mess next time wet weather hits, stink twice as much and take three times as long to dry out...
Hard pan is a good surface as it will not get so muddy after it bakes in the sun ....you could put down some kid sand and that would make a great surface clean and easy to clean.
onthespot, I think it is hard pack poo too, that will smell the next time it rains.
They don't even try to dig in it for dust bath. They wait until the are let out to range then dig holes around the foundation of the house. The hubby is not too fond of that.
So I don't know if I should remove this top layer and then put in some sand. Just put the sand over it?
I live in NH and it has been raining here almost every day! My run is one stinky, soggy mess! My husband suggested putting straw down, but I like the idea of sand.
It has also been suggested that my run is too small for my 17 birds. It is 7'x10' So we are looking into chain link panels (dog kennels) and hardware cloth, as the chickenwire is looking saggy.
Any ideas?