Keep your bees in the dark, and reduce stress!
During hive inspections, reduce light stress on bees by covering boxes with an inner cover or even a piece of plywood
House bees don’t often see the light of day until they progress to the foraging state. They are
happiest being kept in the dark. When removing boxes from the hive stack, cover those boxes with extra inner covers or pieces of cardboard, etc. to calm the bees.