New to beekeeping, have questions!

[topangahomestead]

Hi fellow beekepers! Really excited to join in on this adventure. We installed our package of bees 11 days ago and they seem to be doing great (lots of new comb, pollen stores and uncapped nectar) However I have not seen the queen or capped brood or eggs, of course I am not an expert. I am going to give them another week before I start to panic.
On the other hand: I just discovered what appears to be either a feral swarm or a portion of my bees (maybe with the missing queen) about 10 feet away from my hive. They seem very agitated. The bees in my hive are super calm and I just checked on them this morning and they were hard at work building comb. Any ideas, concerns I should have, actions I need to take? So far I reduced the entrance to prevent robbing and am just watching them.... Any and all advice or experience is greatly appreciated.
Thanks,
Olga

[Kathyp]

have you collected the swarm?  it is not uncommon for a package to have a queen loose in it.  often a virgin.  one may have swarmed and the other stayed.  regardless, i'd grab a box and collect the swarm.

[topangahomestead]

I went back a few hours later and didn't see the swarm (BTW, it was never a ball off bees like a real swarm, it was more like a multitude of bees swarming around the decomposed log near my hive) So.... Theory number one those were my bees (maybe with the virgin queen) checking the log out for new location, but went back to the hive.... Theory number two: those were mason bees or solitary bees or other feral bees that got attracted by me spilling a drop of sugar syrup in the vicinity (not on that log) and they were just hanging out checking out the possibility of robbing thesyrup from my hive. I put in an entrance reducer a couple of days ago, so hope they will give up. I'll go back again today in full sun to see if its the same as I saw yesterday. Very puzzling!
@Kathyp

[Kathyp]

what do you mean by entrance reducer?

[topangahomestead]

A few days ago I saw what looked like maybe feral bees trying to enter the hive, so I put a piece of clay tile alongside the entrance to make it roughly the size of two-three bees, instead of a 3 inch long opening