It’s supposed to be winter in North Carolina. Not so much this year. Two years ago the temperature was 3º, today it is almost 70º.
The bees are gathering pollen from somewhere. You can see where this bee has completely stuffed her pollen sacks with yellow pollen. She will take it just inside the hive where other bees will removed the pollen from her and store it, and this bee will be on her way to gather more.