Hello, I'm a bit of a rookie and I have a couple of questions. I started a new hive a year ago. I'm in lower Michigan, and one very cold, but sunny winter day, I saw hundreds of my bees on the snow dead. Almost like they all came out to relieve themselves, and got too cold and froze. I wrapped my hive, maybe this had something to do with it, Anyway, when I looked in the hive this spring, the hive was nearly void of dead bees, and my top hive body was/is 80% full of honey. My question is after I put my new package of bees in the lower hive body, how soon should put on the top hive body that is full of honey?? Thanks for the help !!! John.