Bees Attempting to Rob a Weak Hive.

I heard what I thought was a swarm and did a quick hive check. This weak hive was in the middle of a robbing frenzy! I closed the entrance and hit record.
Check out the bees trying to get in under the top cover. Wild!
The hive getting robbed has a screened bottom board and an internal feeder, so they can handle being shut in for a few days.