This is a list of the bird species recorded in Portugal. The avifauna of mainland Portugal, the Azores, and Madeira islands included a total of 628 species as of October 2022 according to Avibase. Of them, 16 have been introduced by humans. 3 are endemic to islands, one is extinct.
The following tags have been used to highlight some categories of occurrence. The notes such as "Azores only" and the notes of population status such as "endangered" are from Bird Checklists of the World.[2][3][4] The latter notes apply to the worldwide population, not just that in Portugal.
(A) Accidental - a species that rarely or accidentally occurs in mainland Portugal, the Azores, or Madeiras
(I) Introduced - a species introduced to mainland Portugal, the Azores, or Madeiras as a consequence, direct or indirect, of human actions
^Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements Checklist of Birds of the World: v2022. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/ Retrieved October 15, 2022.
^Lepage, Denis (August 1, 2020). "Checklist of Birds of Portugal". Avibase bird checklists of the world. Retrieved October 31, 2020.