Clumping of bees

Is it a concern if the bees are clumping around the entrance of the hive

Being that you are in Qld., it could be. They could be getting ready to swarm.

Do you have a photo or more information?

Could it be bearding?
image

Looks like the bearding picture.
Only there during the day.
The hive has only recently been separated so shouldn’t be over crowded.