This is my fourth swarm...and this time it was from mine own colony...lucky.
The County Bee Inspector came by to see my now registered apiary and as we were looking into the first hive I noticed I had a pile of bees on a metal T post about 20 feet away.
Took a while to coax them into the box, I saw the queen once and noticed that she was marked with a nice fat yellow dot. From the first hive we were looking at. So many bees you could not tell.
Just glad I caught the swarm and turned it into a split.
I now understand the value of marked queens (you are very right Rob)...and learned a lot. Never a day that I don't it seems....amazing stuff.