When another box is added to the hive, the bees need to be encouraged to move up. When we added our deeps we sprayed all the frames with sugar water. The bees eat the sugar water and use it to build comb on the frames.
In this picture we are spraying super frames to encourage the bees to start building comb on them.
Another way to encourage bees to move up is to add a upper hive entrance. We added upper hive entrances after the supers were on the hives.
This is a close up picture of the bees on the outside of their hive after a hive check.
We still had the entrance reducer on so the bees took awhile to get back in the hive.