Our girls - we got them in May - have been laying until recently. It's pretty cold here (Wisconsin!!) and we don't heat the coop - 2 have still been laying... I went out the other day and spent some time out there talking to the girls and noted that one Ameracauna - Cinderella - was kind of lethargic. Then I noticed that she had ice on her feathers by her crop and ice around her face feathers. None of the other chickens did... I went out again today and noticed she had very runny poop. But her butt looks fine - it's not covered.... I am hoping it was in isolated incident. Then I saw that under the part of the roost that she sits on has alot of gray-ish frozen water/poo on it.... I'm going to try some yogurt and what? oatmeal? cooked? I would really hate to loose her! She is our 5 year olds hen.... I'm open for any good ideas! I have some Ivermectin to de-worm them with, should I do that now? How long until we can eat the eggs after Ivermectin? Thanks! Enjoy thew snow!!!!