What type of worms did your vet report seeing in a fecal test? It sounds quite rediculous to have to remove 3 feet of soil from a chicken yard. I would do some research on chicken worms, how they are spread, such as with a host such as snails, slugs, etc. All chickens may have some worms, and most may handle a small worm load without a problem, unless they are immune compromised or have an illness. The more room they have to free range on fresh grass, and not be confined to small areas of dirt or pine shavings, the better their health will be. If they have to be confined, removal of droppings, adding fresh pine shavings with daily stirring is good practice. In warm tropical areas, more frequent worming may be required. Most of us do not worm that often, and getting a fecal test done before treatment is wise. Round worms are common, followed by less common cecal worms, gapeworms, capillary worms, and tapeworms, plus hookworms, which are more rare.
