What breed of chick?

Hey i bought some chicks from D&B and two of the chicks i have no idea on what breed they are. they are yellow with a couple of grey markings. they are getting white wings, and have white chest feathers, and white tail feathers. if you need pictures just let me know and i will put some up. (one has a grey mask and the other has a grey back)

Pictures would probably help, there are a few different types they could be...