If you are not faint of heart you get a plastic bucket, drill holes in the bottom and about two inches up the side all the way around, hang it about 1 1/2 ft. off the ground and place anything that will attract fly's. The flys will lay eggs on it [I have used raw chicken[can get really smelly] or canned dog food, the cheapest you can find.] anything that will attracts flys. the eggs will turn into maggots, once they are big enough they will crawl through the holes and drop to whatever you have under the bucket. The chickens LOVE them. pour the remains into the garbage and wash out the bucket and start over note only works when there are flys out. J.D.