I know that there are tons of conversations about winterizing coops. But - here goes my question!! My girls are 3.5 months old and doing well in their coop - I leave the door open so they go an in and out of the coop to the fenced run during the day and at their free will. It has been cold but barely been below freezing at night (mid 20s has been the lowest). This weekend they are calling for 50F on Sunday and then 19F on Monday (flash freezing of rain on the ground) with wind chills -15 to -19F on Monday. I am in Southeast PA. The coop is raised off the ground with secure fencing around it. Should I put plastic around the bottom of the raised portion so they have additional wind protection when outside? I have a wind/snow block on the backside of the pen to protect the large part of the enclosure. The roosts are on the rear side of the coop and I’ve been leaving the front window cracked (approx 1.5”) at night for additional ventilation. I think I’ll be closing that for sure! Thanks, all!