I have the opposite problem... Our dogs and goats always try to eat anything they see someone else eating. They will eat chicken feed, wild bird food, horse feed, goat feed, rabbit food, cat food, dog food, ferret food... you name it! Feeding time includes "defending" the bowls and buckets until we're sure the food gets eaten by the proper recipients. That includes occasionally chasing naughty dogs or goats out of the chicken coop and run, when they follow us in to collect the eggs.
Oh, and our dogs have finally realized that eggs taste good; so we have to be careful not to leave the egg basket within their reach! Last week, two of the three eggs we had collected one morning mysteriously disappeared, before we could put them away. I guess we should've been more careful about letting the dogs eat hard-boiled eggs, since they still "look" like a raw egg. I think it's only the large, lab-mix that took the eggs, but she might have shared her plunder with the two little, Jack-Chi sisters. Since then, we bring the egg basket in the pen with us, as we check the farther nest boxes.