I had a nuc swarm and I believe something happened to the queen that emerged so last week I dropped in a mixed frame of eggs/ larva and went out of town this week. I figure yesterday or today is the day any new cells got capped so I don't want to open the hive during this sensitive time to see whats going on, but I'm am confused because when I returned home yesterday I noticed they have closed up the entrance with propolis ( which was already reduces to about 4 in wide) They closed it completely off except about one bee width the entire 4 in span. This is there only entrance. When I put the eggs in last week, there were plenty of bees to cover brood and do other activities so what are they thinking? I'm inclided to think they are better bee keepers than me so I will let them do what they do, but I am just wondering if this is some sign they might be in trouble?