hello...this will be my first coop and first time raising chickens..im in ky. and winter is setting in and im wanting to build a 4ftx8ft x4ft tall coop in my 16ft x 18ft building .. my question is can i keep the chickens in the coop during winter in my building till spring time then build a out door coop with run outside or do the chickens need to be inside some and outside some..im wanting to get about 4 or 5 laying hens to keep