Swarm!

I went out in the yard this morning to let my horse out to graze. I don't know why, but I looked up, and there was a swarm of bees in a tree. Strangely enough it is in a pine tree about 40' up.
I'm surprised I even noticed it since we are surrounded by pine trees. I'm surprised they didn't choose an oak or a maple, but those are shorter.
I have a bad feeling that they came from my nuc hive. There are a lot fewer bees going in and out of that hive. I'll do a hive inspection in an hour or two to verify that, but I want them to be all warmed up before I open up the hive.
I still had an empty medium box in the basement so I put that in the yard with 10 frames of foundation. I am currently only using screened bottom boards for my hives so I have 2 solid bottom boards so right now I have one of those under the box and one on top to make an impromptu hive. I sprayed it with some sugar syrup to try attracting the scout bees for the swarm.
Right now swarm watching is my spectator sport!