Nestlings fledge when they are 13 to 17 days old but remain dependent upon the parents for food and protection. After two to four weeks, they attain complete independence. Although the numbers are uncertain, most pairs probably raise one brood each breeding season. Pairs will produce a replacement brood if a nesting attempt fails. The Carolina Chickadee is a winter resident.
Pairs stay together on their territories over the winter.
They forage in mixed-species flocks with nuthatches, titmice, and woodpeckers. The species is common within its range, with stable numbers. Little information is known about juvenile dispersal in this species.