This is a list of bird species confirmed in the Canadian province of Alberta. Unless otherwise noted, the list is that of Bird Checklists of the World as of June 2021. Of the 445 species on the list, 135 are accidental and nine were introduced to North America. One species is extinct and another probably is. The following tags are used to describe some categories of occurrence. * (A) Accidental - a species that rarely or accidentally occurs in Alberta * (I) Introduced - a species that has been introduced to Alberta by the actions of humans, either directly or indirectly