The cattle herd has a portable water stand. Moved with them every day, it holds water, kelp, salt and minerals. It also has shade cloth, to provide shade when they are in a sunny paddock without trees.
Made from 2x4's to withstand the pressure of being pushed around by large animals, it is bulky and heavy. When both barrels are filled with water it is not movable by us.
But when empty the herd has a way of letting us know that water is needed. The water stand can only look like this when empty, and is a clear sign that they need tending...
Cookie Monster: Hello Dolly Bars
22 minutes ago