Purchased several chicks from Rural King & the bantams are dying. Initially, had a mix of regular size chicks & bantams mixed together, lost a handful of bantams in that batch. I hatched a few bantams before getting the first batch from Rural King & put them together with that first batch & they are all fine. After losing the initial handful of bantams, went back to the store & purchased a few more & they keep dying. One of them I didn’t think was doing too well in the store, but took it home anyway to try to give it a chance. It was dead within a couple of hours. Another one died a couple hours after that, another one dead by morning. I have never had this issue with chicks dying. I did set up a separate brooder for the new batch since they were all about the same age & to give them the best shot at survival. They are on pine shavings, plenty of food & water, and have a heating plate. They don’t seem to be cold, but they mainly stay under the warmer. They come out to eat & drink, maybe walk around & peck around a bit & then go back under the warmer. They seem fine & then I’ll notice one that is not wanting to walk around much, lethargic, not interested in eating or drinking. A bit later, it looks like it’s sleeping, may open it’s eyes, can see it breathing, but it will close its eyes & lay there & occasionally flail about for a second, lay on its side or back & die over a few minutes to hours. They don’t seem to be gasping for air or anything like that. I would like to know what could be going on with them. All of them, with the exception of the ones I hatched, have come from the same brooder in the store. It’s been about a 50/50 chance of survival & very heartbreaking.