I captured a nice-sized swarm last week, and they seemed happy with their new digs -- bringing in pollen, and otherwise staying-put.
After a couple of days, though, I noticed that #s in/out the deep were low. Checking the box: hardly a dozen bees left. One frame had a good comb in it, and there was some stored pollen here and there.
SO ... what could've prompted this?
I was adding barrels of water into a pond maybe 12' away from the deep, off-and-on, for 2 days. A few times, scouts let me know they didn't like that ... so I started doing it early/late so not many bees would be out. Could the noise and vibration of the water hitting water/pond liner scared 'em?
I also used a screened bottom board for the deep; ordinarily, I use a solid one (to imitate darkness and coziness of a tree cavity). Nights were kinda cold this week, too. Excess ventilation?
Possibilities here? Any ideas/similar experiences?
Thx for feedback ....