So it's a sign that they are making honey like crazy then?
no....read my previous post once again, slowly.
but i do think that when bees AREN'T using water-taking it from your supplyes, there's a flow going on-they do not need water to mix the bee.bread since nectar is already thin, but i'm not sure about this one.
lot's of bees on water-rearing brood, low honey flow
almost no bees at water-still rearing brood but with a flow goind on.
at least i think so