I am new to bees as of 2 months ago when I installed a 3# package into a TBH. The bees were doing great no issues when today I found a swarm in the tree next to my hive. I captured the swarm into a cardboard box and cut an entrance for them.

The hive I started 2 months ago is still full of bees and they look fine. Of course it had a lot less bees today than when I checked last week.

What do I do next?
Do I try to put the swarm back in my hive?
Do I need to visit the hardware store and build out a second TBH tomorrow after church?
Do I now have two queens with two distinct colonies or is my original hive without a queen?

day 57 swarm.jpg