So I'm having an unusual experience with my old english banty chicks. I am working on a lavender birchen project. Ran a small batch of eggs in the bater and ended up with 2 little ones. Hatch went smooth everything was well. 4 days old now and some weird things have been happening in the brooder. Last night I went to check on them before bed and to my surprise one was belly up dead so I thought atleast. Then it wiggled. So I nudged it with my finger and rolled it over and it was fine. Hmm. Now I know chickens cant breathe long on their backs so I went to bed glad I had checked on them first. 3 am loud chirping woke me up. Loudest chirping iv ever heard. Rushed in and found them both belly up side by side and one was already gone. I flipped the other other pulled the dead one. And have found the live one on it's back twice today. I added vitamins and electrolytes to their water. I have no idea what's going on somebody help!