I HAVE SEEN THIS POSTED BEFORE BUT CAN'T FIND IT. I WAS LOOKING AT THE ENTRANCE ACTIVITY A A SMALL NUC THAT WAS SET UP NOW FOR 56 DAYS AND NOTICED THAT SOME OF THE BEES WERE CARRING OUT PUPAE FROM THE HIVE. WHAT GIVES HERE. DO I HAVE A PROBLEM? COLVIN
That's a hygenic behavior response. Something happened to those pupae. They could have mites, or they could have been damaged or chilled or diseased.
You should take a closer look inside and tell us what you see in the brood chamber.
I see it as a sign of hygenic behavior. But it may also be hygenic behavior towards mites. :)