I have not opened up my hive to check on my bees. I have seen a few out on a sunny day. I did take the beekeeping course and our instructor told us to open the hives to check. I live in the Pacific Northwest and wonder if I should give them some sugar water when I open the hive. I don't know if they have stored enough honey to last them until I "revive the hive' as it is a new hive.