What kind of chicks do I have??

[jcodyr]

I picked up five of these girls today and I'm not 100% sure what they are I was thinking maybe black star sex links but not sure can you guys help me out here. And I'd also like to know if they are brown egg layers like the guy said they were

 

[Masonicflock]

All of the Dark Sex Links I own lay brown eggs. Looks like one except its hard to tell with the front on view