Hi Charles - welcome to the forum. You pose some difficult questions. It would be useful if you could provide some additional information.
My first reaction is that, if you are thinking of capturing this colony as an induction to beekeeping, you may be sadly disappointed, on both counts!
If the colony is established, it may be very difficult (and even dangerous for a novice) to attempt its removal. There is likely to be comb and brood, with an established laying queen. This will make for very defensive bees (unlike a newly-settled swarm which is likely to be docile). Even if you could get access (are they in a cavity wall?) it will be a messy procedure and one that many a beekeeper would be inclined to avoid. Public Liability Insurance may also be a consideration here. Furthermore, it is not the right time of year to be contemplating such a move.
OK, let's assume that you proceed and manage to capture this colony (notwithstanding such advice). Now what? You will now have to ensure that they are hived and strong enough to withstand the rigours of winter (this requires sufficient 'winter brood' to carry them through with adequate stores of honey/ sugar syrup). You are not likely to achieve this and may not have sufficient knowledge to give them a chance (no offence intended).
Perhaps not what you wanted to hear. These bees may be better left to their own devices while you use your time to study the principles of beekeeping in readiness for the spring of next year. I would recommend a nice new hive and nucleus (or even a newly-emergent swarm) as your introduction to the joys of beekeeping, after a productive winter of research and study.
You could contact a local Association for a more specific view on your bees - they may be able to help with a visit.
At any rate, I hope to see you here for next season, one way or the other!