I have a few questions together- 1: I now have a silkie sitting on 2-3 eggs, normally she lays and goes on, does this mean they're fertile? 2: they are outside and the only insulation they have is a bunch of stray in the house, should I leave her or put her in the barn in the brooder? Maybe w a heat lamp? 3: I have 3 austerlorps in my brooder in my barn, only straw, no walls- just wire, should I keep the lamp on them? 7-8 weeks old.. Thanks in advance!