I’m not sure what’s outside my door, but they are huge and live in the dirt. They’re always flying low searching for something...
Cicada Killers. They will not bother you. Where I used to live, I’d mow the lawn and go right over their holes. They didn’t care at all....
Harmless but I never liked them. Get powdered Sevin and sprinkle in their holes towards evening. After a week or so, they’ll be dead as they carry it to the nest.