Ok on wensday me and my aunt recived 8 silkie chicks and 17 packing peanuts. Today one of my aunts SILKIE CHICKS passed away...Yesterday all chicks were fine. Today she noticed one was gasping for air. Noticed that it had like poop stuck in its but not like pasty butt when it is clung to the outside and around the butt and feathers. She pulled it out of its butt its like hard poop. a couple of them are like this its like that are constapaited. The chick that was gasping for air died. Now the 6 chicks I have are not like this at all so what is going on? Any advice? Plz!