I need some help/advice here. I've noticed this red bump on my white polish chick, and I investigated to find that it is a bump, with no feathers. I felt another one of my polish chicks, and saw that it also had this bump in the exact same place, but his is covered with feathers, and looks great. Does anybody know why feathers wouldn't grow on this spot on this chick? My dad said that it might be from being rubbed around during shipping. Thoughts?