I have a partridge silkie hen about 8-9 months old. I kept her but sold the rooster and 1 hen. The next day she layed. My question is how long will she possibly have fertile eggs? How often do most silkies lay? Once a day/ every other day? I took her egg out and put 2 other eggs in there hoping she will start sitting. Is she young? should I put the egg under my BCM broody hen ? Thanks for any advice!!