Langstroth hives. As many as I can.
I put out my two empty hives waiting for a month for my nucs. Just playing around I put a swarm lure envelop from Mann Lake in there with ten empty max wax frames. Today I happened to see two honey bees checking out the hive with lure. Maybe swarm scouts?!? Can I do anything to increase my minimal chances of them setting up home? Maybe a stack of cash or something?