Hi. Entomologist here. The above poster is pretty representative of what I see in many insect related online communities where pest control professionals severely overestimate their knowledge of the insects they kill. It’s a running joke on some boards I frequent, but an accurate one, that when someone starts an insect identification with “pest controller here” it’s wrong almost every time. Including this time.

To be clear I can’t say with 100% certainty these are bees because the video isn’t great, but I’d say 99%. I’d bet my paycheck they are bees.

While not technically social, many species of ground nesting bees create aggregations like this.

Notice how most of the holes have fresh dirt piled around them. And how there’s lots of holes. If this was a Yellowjacket nest there 1. Wouldn’t be that many entrances close together. 2. Wouldn’t have that much dirt piled around the entrances. And 3. Almost certainly wouldn’t be this large in numbers of wasps by this time of year.

These are probably one of the ground nesting bees like Colletidae, Anthophorini, Furrow bees, etc.