Chewing out and discarding drone pupae in the fall is a disgusting no-turning-back move for the bees. They’re absolutely done with drones for the next six months. I found these drone pupae today after two days of cold wind and constant rain.

The appearance of discarded drone pupae after two days of cold wind and rain. (Sept. 16, 2015.)

See my Expulsion of The Drones video for more information on this lovely phenomena.