It is not suggested to feed Silkies layer. They would prefer the Flock Raiser (higher protein feed) with free choice calcium. The boys will not want to eat layer - the calcium can hurt them in the long run (kidneys I believe). I would also not feed bread unless you allow it to dry to bred crumb stage. The moist bread causes most of the sour crop and vent gleet issues that come up in chickens. They aren't built to digest foods like that. Young birds molt (I think) 3 times in their first year. The last molt is usually the most obvious one. If your other birds are eating feathers then they definitely need the higher protein food. The fruit and veggies are great, as is the chance to free range and find more protein in bugs and worms.
So, when you figure out how to post pictures.. you will share your pretties, right?