I started my first 2 hives 12 days ago. Each was a 7 frame medium nuc. I put them in a 8 frame medium with a additional frame, and put another 8 frame medium on top with 8 foundationless frames. I checked the hives sunday at 1 week and each had drawn out about half of the frames. So I thought I would wait till this Sunday to add another super. I looked at this one hive at 2pm today before I went to work and everything appeared normall to me. The bees were busy, and steady bringing in pollen. Its 4am now and I heard a bee bussing around in the bedroom I scooped it up and let it out. When I did I could see some bees on the landing board of my hive. I looked with a flashlight and saw about 15 bees on the landing board fanning. And you could hear the hive humming. I checked my other hive and all the bees were inside, and you could barley hear any noise. Do you think my first hive swarmed after 2pm when I left for work?