Subspecies (7)

• P. c. salicaria — (Grinnell, 1911)
• P. c. deltarhyncha — (Van Rossem, 1938)
• P. c. interfusa — (Dwight & Griscom, 1927)
• P. c. eurhyncha — (Coues, 1874)
• P. c. caerulea — (Linnaeus, 1758)
• P. c. chiapensis — (Nelson, 1898)
• P. c. lazula — (Lesson, RP, 1842)