I have recently hatched out a mixture of eBay eggs, including some barred rocks, marked as such by the seller. Three of the six eggs made it to hatch and I got two pullets and I thought one cockerel, as it was much lighter. As the paler chick fluffed up, it seemed much to light; That is the three of them with a White silkie (front right). I let the seller know and sent those photos to him and he apologised and said he thought it was a light Sussex and his egg collector (father) had got them mixed up, he keeps seperate pens. I wanted some light Sussex (and have some hatching tomorrow) so I wasn't at all upset. I don't think it is a light Sussex now though, they hatched on January 23rd, I will post photos at various stages.