I have three one year old chickens. I've been consistently getting 2-3 eggs from them since they started laying, but in the last three days they've stopped. zero eggs. Also, my Austrolorp is moulting. This is the first time any of my chickens have moulted as far as I could tell. I just picked her up and a bunch of her feathers fell out. Could this all be because it just started getting cold here? Thanks.