I dont think that these birds are like the ones on Feathersite. These look to be crosses of some sort. They are Silkie crosses due to the fact that they have silkie feathering, or two of them anyways. They have to be at least 3rd generation Silkie crosses, the Silkie feathering isnt a dominant gene and when crossed over a regular feathered bird you will get only normal feathers the first generation and second generation. The third generation is when you will start seeing Silkie feathering in the offspring. Hope this has helped you in some way,...
~Casey
~Casey