Two months ago my family had purchased chicks. Four (supposedly) buff orpingtons, two black sexlink and the lady at the store called the last one a mystery chick.
As they grew the buff orpington chicks did not seem to look like what they were supposed to be, yet the black sexlinks were exactly what the feed store promised.
Below is a picture of one of the four pullets. They are extremely friendly and will jump on your arm or shoulder if given the chance. Yet, they get slightly aggressive towards the black sexlinks time to time.
And this is the mystery chick, she acts very bantam like but I'm not positive on what exactly she is.