How much do I need to think about protecting my chickens from the elements? They have a pretty open coop - it's a gigantic thing that's 100% raccoon-proof (I'm in an urban setting). There's a wood door and they sleep up against it in a sheltered area. There is a plastic roof to keep out the rain. I have a light in the coop that I can turn on for warmth (used it when they were chicks), but I don't know that they'd like be blasted with light all night. It doesn't get super cold here at night (not really any snow, some freezing) so I'm wondering if I can just pad them well with straw. I've never had chickens through the winter, but I used to keep ducks and they did just fine in the winter. Any thoughts are appreciated!