I'm helping a boy scout build a single-width observation hive for the local zoo. We have been unable to reach a decision about the best spacing for the glass windows. Any recommendations from beekeepers with hands-on experience building and maintaining observation hives?
Last year a friend bought screened inner covers to help with summertime ventilation. When we checked his hives I spotted a small hive beetle running around on the wooden frame above the screen....ahaa!!! The black bug escaped the bees by fleeing through the screen.
I built me some screened...