I live in Delaware and a new beekeeper. My two 10 frame deep box hives made it though the winter just fine. About 2 to 3 weeks ago i went out to check on them and to add some sugar cakes. I found them alive so i added some cakes. At that time i noticed no burr comb on the inner cover. Today i went out to check on them and found one hive under the inner cover was several large long bur comb with bee brood inside numerous. I did not know what to do so i scraped it off and discarded same. I added two honey supers one to add space for them and one with a queen excluder. What was wrong with the hive and did i do wrong.