Subspecies (9)

• P. c. canadensis — (Linnaeus, 1766)
• P. c. pacificus — (Gmelin, JF, 1788)
• P. c. nigricapillus — Ridgway, 1882
• P. c. albescens — Peters, JL, 1920
• P. c. griseus — Ridgway, 1899
• P. c. bicolor — Miller, AH, 1933
• P. c. capitalis — Baird, SF, 1874
• P. c. obscurus — Ridgway, 1874
• P. c. sanfordi — Oberholser, 1914