I found a pile of poo on the front patio this morning that had a worm in it. It was about 2 1/2 inches long. I have started my birds on ACV because the local TSC does not carry anything for worming chickens. My birds all seem fine, eating well, free ranging, perky, drinking water. What do I do? I don't know which chicken did it so I don't know which eggs are affected or how many might have it. Help!