This list of birds of New Hampshire includes species documented in the U.S. state of New Hampshire and accepted by New Hampshire Rare Bird Committee (NHRBC) and New Hampshire Audubon (NHA). As of February 2019, the list contained 420 species. Of them, 131 are on the review list (see below) and six have been introduced to North America. Three are extinct and three have been extirpated. To this list are added seven hypothetical species, defined below; they are also tagged (R).