I watched today as my hive is FINALLY coming back with colorful pollen sacs again. The weather has cooled a bit and they have found a source. Interestingly enough, as I was watching the bees come and go, I sat there for a half hour and counted 11 bees being carried out of the hive and get carted off. Some of them didn't fly too well with the extra cargo and the struggling bee. I managed to separate two of them and one flew off. The other looked like it had it's wings all messed up in the tussle (four other bees that I separated did not look like this though.) One bee always flew and the other crawled.
Other than the one bee with the wing situation, the bees looked just fine to me. Any idea what is going on?
I suggested robbers but there was no frenzied activity at the hive entrance, and no fighting outside. Just had a bee, every now and then, emerge from the hive with a prisoner.