Got 2 Silky hens Saturday. Built them a tractor and every night right at dark I have to go get them and put them up into the roost. My Buffs and Marans I have in another tractor are in the coop an hour before dark. Is it normal for Silkies to want to sleep on the ground? I am afraid to let them sleep in the run because a coon or something might dig under and get them. I always shut up my chickens in the roost at night. Thanks for your input.