I have 5 silkie babies, about 10 days old, from a mail order hatchery. They are in with a dozen other mixed chicks. Silkies seem to be struggling. Over and over they are getting pasty butt. A coupe have swollen sore looking vents. (Probably from all the cleaning?) This morning one of them is doing the dreaded hunched, wings out, lethargic stance. What am I doing wrong or what can I do different? Do I need to separate them from others? That is my first inclination and I am going to work on that today. Any other thoughts? EDIT: 2 or 3 of the silkies are doing fine. The 3 that are struggling are very small, also....considerably smaller than the other silkies. One of them, I noticed this morning, is getting stinky. Their bottoms are poo matted, but I CAN still visibly see the vent, but they still act like they are struggling.