Quote:
Assuming you are not using something toxic for gravel (and why would you), why on
earth should that be a problem? It's not that they think it's grit -- it IS grit
They are *supposed* to eat it. They aren't going to O.D. on it any more than they do on your grit feeder
Sand or gravel would be the best solution to the o.p.'s problem (mixed size gravel, or even 'roadbase', will be the cheapest, and you're best off having some bulk delivered then wheelbarrowing it to the coop rather than paying premium prices for umpty little plastic bags). Put in at least 6".
Alternatively you could use largeish shredded bark or wood chips if you had no money for sand/gravel but a free source for the wood product. (DO NOT use shavings or finely-chipped wood products btw, they will just hold moisture and quickly become a horrible muck-swamp). The disadvantage of wood products is that even the coarse ones do decompose in time, which will create a horrible muck-swamp unless you shovel it all out (it'll be great for your garden though!) and replace it, *before* it gets to wet and fetid.
Also, roof gutters, redirecting downspouts, and some constructive trenching can often direct the water away so that it does not collect in the run area in the first place.
Good luck,
Pat