>One frame has a small patch (15-20 square inches) of cells containing
>multiple eggs (2-4). The hive has a queen; she lays lots of seemingly
>normal eggs in seemingly normal cells; there is no sign of her failing
>nor of supercedure.
>
A vigorous queen will lay multiple eggs if she is deprived of adequate
laying space.  The bees will clear out these cells as rejects and the queen
will lay again.  The symptom of a laying worker is individual laid cells
spaced apart which develop into drone cells.
Make sure the queen has drawn worker comb next to the brood to lay in and
see what develops.
 
Betty McAdam.
HOG BAY APIARY
Penneshaw, Kangaroo Island
j.h. & e. mcadam<[log in to unmask]
http://kigateway.eastend.com.au/hogbay/hogbay1.htm