From his past auctions, he HAD Silvers in the pen with the Golds. So somewhere there is a mix going on. But from seeing that pic, he probably did alot of work on them to get to that color that needed to be there.
Not sure if there is a chance for a "throwback" (Silver) among the Gold chicks. It is possible but I do not know of his ratio of getting Silvers in that lot.
Ok, I must have had the wrong guy, this is a lady that got them and they are purebreds, descend from the UK imports back in 2004. So its the REAL thing! She is such a very very nice lady! She does not offer these too often because she lost her roo to a hawk and that set her back a bit.