[Tia]

When exactly did you hive them? Usually the swarm has the old queen, so she should start laying as soon as she has someplace to lay. Perhaps, like me, you just can't see eggs. Eggs turn to larva in three days, so maybe you'll be able to see something in a little while. Are they storing honey and pollen?

 

[Tia]

Never any harm in feeding. They won't take it if they don't need it. Just watch for robbers.

 

[Tia]

No, actually I meant other beehives, yellow jackets, hornets, bumbles, etc. A swarm is most times not strong enough to defend itself against these predators. I would reduce the entrance (I trust you're not using entrance feeders!).