Scott got it covered pretty well.
This evening I drove 45 minutes to remove one colony which turned out to be two. The larger of the two was queenless with nothing but drone brood comb.
I will be combining them tomorrow.
Because of the drive and the height where they were I used the bee vac and left close to dark, but as Scott (the hardwood)
mentioned, leaving the hive there for a day or two is the best way to go, if you catch the queen/queens.