What's wrong with this chick?

[blue_egg_lover]

I got this chick back around March 24. All of the other chicks are just about fully feathered but this little gal. I'm not sure what kind of bird she is. I did order a large assortment. I'm not sure if she is just slow at getting the feathers or if there is something wrong with her. She seems healthy like the others, just a little bald. Should I be worried?

 

[Kbagwell1]

She looks like one of my barred rock pullets....most of them (I have 8 total) are fully feathered but one is still bald looking! I think she's just feathering slower than the rest!!