I let the girls out of their run for some supervised foraging today. After they wandered around for a bit, I directed them to a spot on the side lawn where there were 2 large ant nests. (each one about 18" diameter) I opened up each nest with a garden fork, then stood back and watched while the 5 girls went to town on the resulting ant mayhem. Good timing, as the nests were loaded with eggs, larvae, and pupae, as well as a number of winged queens getting ready to take flight. IMO, chickens produce more value in pest control and fertility than they do in eggs... though I thoroughly enjoy an egg almost every morning.