This appears to be Honey Bees engaging in swarming behavior. Honey Bees gather like this when they a seek to establish a new hive. This knot hole will make an excellent new home.

Observations Details

County Collin
City Richardson
Date Jun 29, 2012
Time of Day Afternoon
Temperature Hot (greater than 89°F/32°C)
Weather Clear
Habitat Recreation-Park
Type of Behavior Swarming
Gender Female
Maturity Adult
Observer Chris Jackson
Main Article Honey Bee Observation Location