You could contact your local council, sometimes they will refer on info about swarms to beekeepers looking to get bees for free.

Where are you? DH was talking about getting more... but he'd have to buy more boxes first I think. He is in touch with members of the local beekeepers association, though, so could find out if someone is looking for a swarm.

ETA - oh, well, DH would be sad about the poor girls Epacris, but yes, they are feral. Don't worry Eluned, there are lots more.