What was once buzzing with life is now just an empty space on a wall at the Sawnee Mountain Preserve.An observation honey bee hive did sit on the spot, but now all that remains is a small metal pipe where bees used to travel in and out of the hive. “When it was here, it was always covered up with kids looking at it,” said Heather Dowdy, an employee of the preserve on Spot Road. Beekeeper Bill Dunn, who’s also active with the Forsyth County Beekeepers Club, said this isn’t the first time the observation hive has had to come down.