Odfrank-
Neat idea, someday i hope to be able to use that.
Michael-
Thanks. I'm thinking my drones are not the kind we really want free to visit the congregation but i dont think i want to clog indefinately the hive with trapped drones. I'm not sure harvesting them would be any kind of good idea.
I'm beginning to think that feral bees in my area are just not a reasonable option for the time being. Maybe things will change in the future. We'll see.