> 
> I number the queens rather than the hives.  Generally I mark them so if I
> find an unmarked queen she gets a new card.

So a bit of a guess as to when she may have been replaced by swarming or
supersedure?

The dates aren't precise, I only recorded the years in which the queen was in my hive.  If I moved her to a different hive the card went with her.
Chris

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