Re: Moving eggs.
Most likely you are seeing the eggs of laying workers. Laying workers
develop very quickly in queenless hives and (according to what I have
read and personal testimony of beekeepers) *very rarely* they will
lay a female egg that will develop into a queen.
If workers moved eggs with any regularity then they would certainly
find it easy enough to go to a hive a few feet away and get eggs.
They seem not to be willing or able to do this.
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pb