My guess is that you found only one of the two queens that were in the hive when you made up your nuc. I've read that a hive may occasionally have a mother-daughter pair of queens for short period. Perhaps intending to swarm but delayed by weather?Iddee said:The other one, tho, is a complete mystery. It has eggs, larva of all ages, and capped brood. It shows no sign of ever being queenless. How can that happen? Anyone have any ideas???