You have answered your own question - they are swarming.
A swarm of bees can vary in size, but it typically consists of thousands of worker bees along with a queen bee. Swarms are temporary clusters of bees that are formed during the process of reproduction within the colony.
Bees will instinctively swarm around their current queen. A swarm of reporters descended on the mayor's office after the announcement.
Examen = swarm, as in a swarm of bees Fervere = To swarm, as a verb.
Bees generally swarm. So you might say a huge swarm, or a gigantic swarm.
A couple were hiking when they encountered a swarm of bees in their path.
If you have found a swarm of bees, it is possible to find the queen and put it on your chin. The other bees will cluster around it and it will look as if you have a 'beard of bees'.
It sounds like a typical swarm.
The swarm of bees chased the young girl as she screamed and ran.
It is - as in a swarm of bees
A swarm of bees or colony of bees
There are multiple ways to catch a swarm of bees. One way to catch a swarm is to use a smoker.
"Swarm" is a collective noun and takes a singular verb. Although many bees make a swarm, it is meant to be taken as one whole. The correct sentence is, "There was a swarm of bees (chasing me)." The sentence could be rearranged to read, "A swarm of bees was chasing me." See the related link for subject/verb agreement rules. Rules 3, 4, and 18 address this question.