This is a list of bird species confirmed in the Canadian province of Newfoundland and Labrador. The Bird Records Committee of Nature Newfoundland & Labrador (Nature NL) lists 427 species as occurring in Newfoundland as of 2021. Twenty additional species were added from Bird Checklists of the World (Avibase). Of the 427 species, 114 are rare, 71 are very rare, and 27 are "rare/accidental" as defined below. Two were introduced to North America. One species is possibly extinct and two extinct species believed to have formerly been found in Labrador are not on the Nature NL checklist.