Well, that opens up some possibilities! You’ll get a lot of mixed colors, but you could also potentially get: chocolate mille fleur, dun mille fleur, chocolate mottled, dun mottled, black mottled, red columbian, chocolate red columbian (basically red with chocolate tail feathers), dun red columbian, and khaki red columbian. To get khaki, you’ll have to cross two duns, meaning you’ll have to produce another dun by crossing your existing dun to another color. You’ll probably get some partridges and maybe some silvers in your crosses too since many silkies carry partridge. You won’t be able to breed anything with duckwing, blue, or cuckoo, because those genes aren’t present in your breeding stock.