At the Entrance
So much can been seen by observing the entrance to a hive. Here we can see a drone exiting the hive out of the left hole and bees bringing in pollen over to the right.
Late Summer Pollen
These bees are air-conditioning the hive. They have their abdomen's curved down and are directing the airflow into the hive to keep the brood chamber at optimal temps.
Charles Napier Hemy - Telling the Bees