Heat: No
If yes on heat, what method do you use (lamp, flat panel, etc.)?:
Insulated coop: No... but I may insulate it for next winter, depending on how they do.
Amount of ventilation (approximate sq.ft.)you employ during the winter: I have about 6"x4" vent on the top back, the door to the caged coop is about 1'x1', and the 5' tall door is usually cracked about 6"-12" to allow the birds access to the yard.
Coop size: about 5' tall, about 5' wide, about 10' long, with 4' being completely enclosed & 6' being wired around the edges. A tarp is covering the whole thing.
Litter method: 1/4 bale of straw fluffed in both caged & enclosed. I let the birds stomp it down. The layer is about 3-4" deep in the enclosed, and runs between 0 & 2" deep in the caged
#of chickens in coop: 3 (one is currently in the house recovering from being mauled by the neighbor's dog, so hopefully she'll rejoin before winter is over)
Location (city and/or state and/or zone): Mountain Home, Idaho (south-west Idaho)
How many winters have you been through with your chickens?: This will be my first ever.
(Optional) briefly describe how your flock has fared using these methods:
The three birds are still alive
They haven't set foot outside in the snow. I've been feeding them some extra treats - canned dog food & corn, & BOSS, along with their 20% protein layer crumbles. My one bird who was producing eggs stopped back in September.