By now cheatgrass (downy brome or Bromus Tectorum if you are picky) seed has planted itself and that is the new growth you are seeing with a drop in temps and a little rain. That tiny new growth stuff is really high in nutrients, a few slow late grasshoppers and a little new growth cheat makes for happy chukars. The huns are mostly found out in the wide open stubble fields feeding on seeds like pheasants. Your dogs usually will not have any cheat problems this late. The seeds are the issue, they are barbed to seed themselves and dig quickly into sensitive dog parts. When the dog moves so does the seed.
Bring water for you and your dog. Be careful out there.