Sorry you haven't gotten a response yet.
My 2 Silkies are with my big breeds and my ducks. I have the following breeds: Barred Rock, Brahma, Orpington, Cochin, Sebright, Turken, Spitzhauben, Legbar, EE. They hold their own.
However, I've heard others' Silkies haven't done well in flocks with...