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One of my Bee Hotels
(sh.itjust.works)
Solitary Bees and Predatory Wasps frequent these. I have never seen them interact though. Possibly they are not interested, or active at different times.
Notice that some spaces are sealed with plant resin, and others with cellulose, in at least 3 different ways.
This is in Cambodia
Fair, but I'm a bit of an A hole honestly