The phrase "angry bees" refers to a group of bees that are mad or upset, typically because they feel threatened or are being disturbed. Full definition
But if this stress continues, these butterflies can turn into angry bees. (drmowll.com)
Casey in ecstasy before the Blessed Sacrament, and later as he calmed a swarm of angry bees by reaching into their hive unprotected to remove a second queen bee and then coaxed the swarm back into the hive by playing his harmonica. (firstthings.com)
A little bundle of stars apparently crashed like an errant stone into the larger Beehive Cluster, scattering stars like angry bees. (sciencemag.org)