Here are my blues after they arrived from their 4 day trip through the postal system. They all made it though. I will have to get a better fluff pic though.
They just naturally occur in poultry. It is a recessive trait. I had a pullet to hatch and had to work from there, it took about 3 year of breeding before I had a line of silkied cochin from the one pullet. There are also silkied Serama, and Japanese bantams. There is also a pic of red silkied cochins on www.feathersite.com and also some pics of my birds. They can be found under the Cochin link.