Swarms, queens and eggs

For the last couple of weeks the weather had definitely take a turn for the worse, but a week ago push came to shove and I had to do an inspection.  When I turned up at this apiary a swarm had taken residence since my last visit.

But not in a nice hive left there for artificial swarming, oh no, lets all cram into a totally empty nuc, and build a load of wild comb.  Nothing much I could do at the time except dump them all in the hive.  OK one week later and a nice weekend, so in I go, a bit apprehensive that the swarm might be one of my own colonies, always a possibility however unlikely. Started with the single super colony on the far left, saw the queen loads of eggs, good colony.  Next the colony far right with three supers, saw the queen loads of eggs good colony.  Now the newly established swarm,

This is the wild comb they had built on the crownboard of the nuc, covered in capped brood.  However imagine my surprise when going through the colony I came across this,

a green marked queen, 2019 if the marking is correct.  I don't mark my queens, so this strong colony is not out of my hives. 

Now there are quite a few novice beekeepers who have difficulty seeing eggs or really know what they are supposed to be looking for.  I know its not easy until you get used to it, so this is what you are looking for.

All through this inspection the bees were much more active than usual with huge numbers in the air.  Not thinking much more of it I closed up cleared away and prepared to leave.  Just above head height on a leylandii branch another swarm had rocked up.

Now I'm fairly good at handing out advice but taking my own, not so much.  No spare hive with me, so for now they are in the on site nuc.  Its a big swarm so whether they stay or not is even more uncertain than usual.
Both the swarms will be moved to a new site this week.