A little over a week ago, we had a Barred Holland chick who, for the first two weeks of his life, looked very healthy. Then, over several days, he become paralyzed. He seemed to loose control of his legs first, then wings. He was unable to eat or drink by himself and was slowly "wasting away". A few days after the first chick started having problems, another chick started exhibiting the same symptoms. We separated the two from the rest. The first chick ended up completely paralyzed except for his neck. We had to put him down today and I am taking him in for a necropsy tomorrow. The second chick is slowly getting worse. I have held her up to the food and water and she takes a little of each. My husband thinks that he noticed tonight a couple of chicks in the two dozen we have left acting a little weird...... We have been feeding them commercial organic feed and have them on hemp bedding. A small and large brooder are in an insulated shop. We have some eight week old Barred Hollands (that we got from a different hatchery) that we recently moved from the large brooder to the outside and they still seem very healthy. We never had them in the same brooder with the younger batch of chicks, but the younger batch was moved to the large brooder a few days ago when we moved the older chicks outside. The sick chicks were put in the small brooder. The two brooders are about 15 feet apart. We open the doors of the shop during the daytime to give the chicks fresh air. Does anybody know what disease or condition might be causing this? I think that it will be a few days before I get the results of the necropsy, and I don't want to loose any more of these rare chicks. Thanks so much!