Ah, yes, i forgot, Chickens scratch and dig holes in the ground. For my ducks i use wood-chips in the run which nicely soak up all the wet

and then turn into wonderful garden soils in a couple of months.
I could use tons of sand too, though. To mix with my heavy clay soil and make it easier to dig over. Unfortunately i have a small bridge at the bottom of my driveway that is too small for a dump truck and can only take 12000lbs (~5½ tons) of weight. No company here would deliver such small loads of sand.