I got an order of 11 chicks from Ideal on Thursday of this week. They all seemed healthy. I inspected each and do daily for pasty butt.. no sign of that, but a few have this crusty belly button I've never noticed on other chicks before.. One that has the most prominent of these, an EE female, is now ill. She is lethargic, panting and droopy. I've isolated her, added abx to her water and electrolytes. Other than a wait and see if she pulls through, not sure what else to do. All the chicks are on medicated starter. So.. what is this crusty thing, is it an indication that I'll have more sick chicks..??? If so, is it contagious.. ?I've got the others from this order with my 5 from an earlier order (they are about 3 weeks older) in a corner of my coop.. caged off from the rest of the flock.. Update: She died..