I have a mixed flock and the temps are now getting down to the 40's at night. My chickens (Australorps, BR's, d'Uccles, LF Polish, RIR's, and EE's) sleep on the roosts and are fine; however, the Silkies have always slept huddled on the floor in the corner. Winter temps will probably be in the 30's and 40's here. I am moving my Seramas inside the shed, but didn't know if any of you have had problems with Silkies outside in colder temps. Just trying to plan ahead for winter.