I think it probably has to do with how the black line up on the individual feathers, but I will defer to someone with greater knowledge on the subject...
Not to start all the cat lovers up, I like d the pic of the silkie standing beside the cat but the cat would have to go, sorry if I offended anyone out there.
I am concerned that if I bring some home that my baby girl will want them to live in the house with us. She is a sucker for anything cute. While they are not my thing either, I can see the attraction.