We added the entrance reducer today. This is a first step towards winterizing the hive.
The advantages are that less cold air can enter the hive, as well as reducing the risk of robber bees having easy access to raid their hive.
What are robber bees you ask?
As the pollen gathering season ends, hives and swarms of bees may be desperate for food and will often seek out weaker hives they can raid and steal honey from.
An entrance reducer will help protect your hive since there is much less space for robber bees to enter and leave through – thus easier to defend!