Need an opinion please. This hive is 2 medium supers never built up really well all season, but 3 weeks ago I saw a nice worker brood pattern on many frames and open nectar. Felt they were on the right track.
Today I checked and all frames are filled with drone brood. Tons of drone brood.
So my gut feeling is the queen ran out of sperm and became a drone layer, but what do you all think?