I ordered ten cornish x chicks from Cackle, and all arrived healthy and wonderful. They sent an extra, so I have 11. They are maybe a month old. Ten of the 11 are thriving. Eating well, healthy, friendly, feathering out nicely. One of them is not, at all. It's the size these guys were at about a week, and it is barely feathered out. I separated it as soon as I realized it wasn't doing well, so it's been in with smaller chicks so that it didn't get pushed away from the food. It's still not thriving. Any ideas?