I have been noticing some weird poo but I can't figure out which chicks(s) it is coming from. It looks green and the white cap is mostly runny and in some cases clear. Is green poo a bad thing if they free range and eat a lot of greens? I have also seen solid poops that look greenish (dark, not bright.) Then today I noticed that one of my roos is limping. I can't see any cuts or other injuries. I don't know much about chicken diseases so if these symptoms look dangerous could someone please tell me what to do?! They are 12 week old EEs and have been on medicated feed. They free range for a part of each day and I feed them greens from the garden, yogurt once a week, some oats, flax seed and quinoa. Their behavior seems normal. Also can they get cocci if they are on medicated feed? I was about to start giving them organic feed (mixing it in slowly with what they have) Thank you! Edited to add that when I went to put them to bed I saw that the limping roo had one of the loose poops and saw a few others but not all have normal poops. Also noticed that one of the girls has a little scab on her comb. I don't know if that's anything or if I'm just being paranoid now because I'm worried!