posted 12 years ago
Randy,
I don't think it's a bad idea. A lot of beekeepers would tell you this will lead to the spread of American Foulbrood and other horrible bee illness, but it's not any more likely to do so than a tree cavity or a wall. In the past I've seen Warre-style hives that are one tall box -- equivalent to the volume of at least 2-3 standard Warre boxes. No bars or method of manipulation -- but basically a feral honey bee nesting site. If you've got the time and energy (and place to put them!), then I say go for it! To attract bees to them (if there are any in your area) you can bait the hives with lemongrass oil. Personally, I'd take the time and resources to plant more pollinator friendly plants instead. Here in Portland I get hundreds of calls each year for bee removal from trees and walls. Also, many of the swarms I catch I can see come from feral colonies in such cavities. To me I think there are plenty of nesting sites in cities -- rural areas may need a bit more help.
Best,
Matt