I work third shift, 11:30 p.m. to 8 a.m and usually lay down about 8 p.m. to sleep a couple of hours before getting up around 10:20 p.m. to go to work. At 10 p.m. my daughter came in and told me there was a swarm of bees in a tree in our front yard. She said she heard a loud buzzing sound come across our porch. She turned the porch light on and saw the bees attaching to a low limb. I got up and saw the bees in a cone shape hanging off a limb about 4 feet off the ground. So far so good. I found a cardboard box, clipped the limb off with a pair of loppers, and eased bees and limb down into the box. I carried the box to my shed and pulled out a box with 3 frames of drawn comb and poured the bees in to the box sitting on a bottom board with a queen excluder between the box and the bottom board. Placed the inner cover and top cover on and hope they'll be all right until I get home around 8:45 a.m. The tree is just a few feet from the main entrance into our house and my wife, daughter and me had all used the entrance several times between 5 p.m. and 8 p.m. and the bees were not there. I'm guessing the bees had swarmed earlier that afternoon and for whatever reason, decided to move after dark again. Or do they swarm after dark sometime? This tree is probably 100 yards from the hive I suspect the swarm came from. Interesting.