Can you name the breed?

[mrsp523]

I received 5 chicks, when we inquired we were told they were buff orphington with mix of rhode island red/and similur. 2 of these do not appear in this breed. Can anyone help. They are about 5 weeks now, and these 2 in question are smaller than the others. the first pic is the all brown/black one, the 2nd 2 pics is the other one who is also brown/black but his/her chest is full of white. Thanks for checking it out. Hopefully I uploaded this pics correct

 

[ve]

First looks Partrige Rock and Second is Speckled Sussex

 

[mrsp523]

Thanks this is helpful! Now for them to grow up some more so we can have some eggs....well if their not roos that is. That is yet to be determined.