I think in the US that all silkies are considered bantams. Somewhat in between European bantams and LF.
The SOP will answer your questions.
http://www.feathersite.com/Poultry/CGP/Silkies/BRKSilkies.html
The SOP will answer your questions.
http://www.feathersite.com/Poultry/CGP/Silkies/BRKSilkies.html