Newbie in Oklahoma here, have had my hive 1 year and I need guidance! Here's what happened, long but necessary. I did a full inspection Saturday and there were a large number of bees under the telescoping lid. I set the lid to the side of the hive to do the inspection. The hive, 2 deeps, was packed with bees and honey and I was worried about swarming because temps have been up to 70 during the day and there was a lot of drone larva so I attempted a walk-away split into a 3rd deep. After putting the original hive back together when I picked up the lid all the bees that had been on the lid were on the ground in a group the size of a dinner plate on the cement block under and beside the hive and they were fanning. A minute later they all started streaming towards the hive at once and I though they were going towards the entrance. I went to put my equipment away and went I came back they were gone so I didnt think a lot of it but yesterday I got to thinking about the streaming and fanning behavior and took a look under the hive with a flash light. See attached picture. Did I disturb a preswarm on the lid and now they are trying to reform a group to swarm or are they just clustering to keep warm? Do I need to get them back in the hive asap? I was going back into the hive Saturday to check on the split, is that soon enough? I closed off the sides and back of the hive and front has a reducer. Help!