Cameron, the third colony you brought in with the drones that are now being evicted, are you sure you don't have a drone layer in it? A colony that harbors a large drone population in late season or fall, would cause me to think that something is not right and it is not likely to make it through the winter (especially not through an eastern Canadian winter). Good luck, Paul van Westendorp [log in to unmask] Provincial Apiculturist British Columbia