emerging cells

How early do the bees usually start bringing pollen into a nuc ?? April 12, I put frames with hopefully young eggs into the 2 nucs, - 8 &10 days later, both had capped QCs - Going by the dates I read, definitely they should have emerged by now - maybe just barely for the one. So mating...

Hi, I have a question about queen cages and preferences from more experienced beeks. This is only for small time queen rearing. In the event that I have more queen cells than I can use in nucs and/or the weather is bad and I can't get into the hives, I am wondering if I should be getting...