"It happened again," George said. He called Charlie about a week ago when a huge swarm landed on his cherry tree. Now he's calling again. "They're on a lower branch this time. Come on over."
It was cold and almost dark. The bees would want to stick close together for the night to keep warm, so Charlie wouldn't have to wait a long time for the bees to march in, once he got the queen. Rescuing them would be a snap.
Don't tell me bees aren't smart. George's garden is stunning, lush, and probably the most beautiful piece of greenery within a mile. They picked the best place they could find to swarm.
If you want to attract bees (maybe not this many) plant a beautiful garden.