My rouen female is burying her eggs. we have the nst box on the ground, it has no bottom in it, so she digs in the dirt and straw and buries them. she has done it to two eggs so far. Is she hiding them from the other birds? Will she get broody and sit on them? If she does sit on them, will they hatch? any info would be appreciated. this is the first time i have had one do this. thanks!