Happy bees or a fight

[Queens59]

At the back...does this picture show a) Robbing b) over-enthuthiastic guard c) other? Wasn't quite quick enough on the shutter but the 4 at the back were tussling (!) (?) Ta

 

[grizzly]

Just guarding. if it were robbing the bees would be trying to kill each other.

I have only seen robbing once, and you will absolutely beyond doubt know immediately whats happening.