tshnc01--I hope you don't mind if I piggyback on this one rather than starting a new thread.
If my observation window is fogged up after a couple rainy days, do I need to work on ventilating my hive better? If so, where should I have ventilation holes? For now, I just propped up the back end of the cover to help them dry it out. My entrance is on one end. Where else should I have entrances/holes? On one hive, the lid is loose enough that bees are getting in underneath the lid. Will this be a problem in winter?