I'll start by acknowledging I might have made a mistake with the screened board, even with the inspection board in place to keep it dark. But being a new beek, it's what I had and I didn't realize most people don't feel this is the way to go.
I'd also like to remind those who comment, I posted a couple of weeks ago, that my bees had gone through 13 quarts of 1:1 syrup in a week and I had put another 10 quarts on top without knowing the dangers of this and nearly honey (syrup) locked my queen within weeks of installing the nuc. I followed the advice received and on the next inspection removed the now empty feeder (23 quarts in two weeks) and put on a new upper. I also moved a couple of the outer frames into the upper and put blank wax foundation down in the lower (which they have only started building the one out, the other is still untouched).
So, I did an inspection today, more to get the entrance reducer out than anything else. The queen was present in the lower super on frame 5.
I pulled the top super off and set it aside whole.
I noted a large piece of burr comb (the white) one across two frames and removed it.
I then started pulling the lower super frames. Each one I pulled had a small and one had some large burr comb nearly connecting it to the bottom board. The larger pieces had larvae in them as you can see in the pictures.
Again, being new, my question is, is this common? To my simple thinking, the bees built all this burr comb up and started using it while the new upper super was being built out to accommodate the queen continuing to lay. Is that a plausible scenario? Or could it have anything to do with the screened board?
Any reason for concern with this? The burr definitely didn't look like swarm cells to me, but what do I know, I'm new. I added the baby bee cause she was cute and down on one of the large pieces of burr comb when I got up to the house.