This list of birds of Connecticut is a comprehensive account of all the bird species recorded from the U.S. state of Connecticut. Unless otherwise noted, this list is based on the checklist produced by the Avian Records Committee of Connecticut (ARCC) dated May 10, 2020, the list used by most birders to objectively evaluate species recorded in the state. Of the 446 species listed here, 128 are considered rare or accidental. Eight were introduced to North America, three are extinct, and four have been extirpated. Ten species are included though they have only sight records.