Supers being pilfered

I am hearing that many beekeeper colonies are light on honey. The bees in many of these colonies have been going up into the supers and removing the honey and bringing it down into the brood nest. Left with this behavior the bees will clean out the supers in short order and bring all of the honey down into the brood boxes. So some beekeepers are pulling their honey off before they have none left.
Some beekeepers I have talked to that have been feeding say that the bees have been emptying one gallon feeder pails in a little more than two days.