I'm not sure if my flock has a worm issue or not. I clean my roost and poop board every day and inspect poop for any evidence of worms. So far no worms or what appear to be eggs. I also clean the coop and run regularly. They free range for a couple hours on most days. I have BSLs and EEs, all are about 10 months old. One of my EEs is plump, and the other has always been a bit on the small side. I can feel her keel when I pick her up. My BSLs feel light for their size, and I've noticed that their weight tends to fluctuate. One of them has always been very light (lighter than my smallest EE). Her keel protrudes and her neck is very long and thin. Another always has loose poop, and it appears greasy. I'm familier with the chicken poop chart, but I'm not sure it's normal for her to poop this way every day (it gets very gross). Also, this week I noticed there seems to be light swelling around their eyes. At first I thought it might be because of the fluctuating temperatures or dust in the coop. This winter I began adding Calf Manna to their feed which seemed to help with their weight. They eat well and always have access to fresh water. They also lay regularly. So, what do you think? Might they have worms? I'd love to hear your opinions, because I don't want to worm them unless I'm sure they have a problem. Thank you!