Hive Slider Happybees (Four Seasons Covering) 20 Cm You can control the bee entrances and exits of your hives in your colonies throughout the 4 seasons with the assurance of Happybees. To protect yourself from the cold in winter, you can narrow the entrance to prevent other insects and wild bees from entering the hive. You can also prevent and control the cold air entering the hive with a narrowed entrance hole. In winter, the flight hole should not be completely closed, if it is blocked with snow or anything else, it should be cleaned.