Got the call to remove 'Bees' from an unused chicken coop that was going into service. Sounded sketchy but the people are good friends. It was a nest of bombus ternarius in the floor. Best guess from book anyway and bumble distribution. I actually thought it looked more like one from California and Mexico, but that is not likely.
After moving the sheet of plywood they were under, I scooped the nest out mostly intact and put it in bale twine box, taped it mostly shut and gave them some time till dusk. I then closed them up and relocated them to a shaded and abandoned haystack. I was suited up, but never even threatened.
Now wasps or hornets would have gotten a flamethrower if practical but bumbles are good people and anyone getting a chance to help them out should know how easy and painfree it is.