https://parasitipedia.net/index.php?option=com_content&view=article&id=2647&Itemid=2923To those of you following this thread, where are likely sources of my hens getting worms? Their coop bedding is clean and dry. I use a poop board under the roost that is scraped daily. They have a very large run and enclosed yard outside in a partially wooded area. I allow them to free range for a couple of hours every day in our meadow and woods. I've had hens for 5 years now in the same situation and never had worms.