Bees on Robber Screen
Had a case of Robbing, installed Robber Screens on all Hives and Nucs. Robbing seemed to stop. My Bees are back to bringing in pollen.
But now something I haven't seen before. Large clumps of Bees on outside of Robber Screen sucking the Bees on the inside. Looks as if the inner Bees are feeding them.
Whats going on and what to do about it?
I would guess they're passing nectar/water INTO the hive, saving time vs. going around the screen. I see it when doing a screen cone trap out.