This is a list of bird species confirmed in the Canadian province of Nova Scotia. Unless otherwise noted, the list is that of the Nova Scotia Bird Society (NSBS) as of 2021. The Society's field checklist contains 308 species, some of which are seen regularly but only in small numbers. To that list are added an additional 169 uncommon species from the full NSBS list. Of the resulting 491 species presented here, 246 are accidental and seven were introduced to North America. Birds that are considered probable escapees or to have been released, although they may have been sighted flying free, are not included.