Much of the information in these pages comes from

Lowther, P. E., S. M. Lanyon, and C. W. Thompson. 1999. Painted Bunting
      (Passerina ciris), The Birds of North America Online (A. Poole, Ed.).
     Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North
     America Online: http://bna.birds.cornell.edu/bna/species/398doi:bna.398

     and the references cited in Lowther et al. (1999).

Other references:

Iñigo-Elias, E. E., K.V. Rosenberg, and J. V. Wells. 2002. The danger of
      beauty. BirdScope, Summer 2002.

Klicka, J. T., A. J. Fry, R. M. Zink, and C. W. Thompson. 2001. A cytochrome-b 
        perspective on Passerina bunting relationships. Auk 118: 611-623.

Mlodinow, S. G., and R. A. Hamilton. 2005. Vagrancy of Painted Bunting
       (Passerina ciris) in the United States, Canada, and Bermuda. North
       American Birds 59: 172-183.

Pyle, P. 1997. Identification guide to North American birds. Part I. Slate Creek
       Press, Bolinas, CA.

Rich, T. D., C. J. Beardmore, H. Berlanga, P. J. Blancher, M. S. W. Bradstreet,
      G. S. Butcher, D. W. Demarest, E. H. Dunn, W. C. Hunter, E. E. Iñigo-Elias,
      J. A. Kennedy, A. M. Martell, A. O. Panjabi, D. N. Pashley, K. V. Rosenberg,
      C. M. Rustay, J. S. Wendt, and T. C. Will. 2004. Partners in Flight North
      American Landbird Conservation Plan. Cornell Lab of Ornithology. Ithaca, NY.
     http://www.partnersinflight.org/cont_plan/ (Version: March 2005).

Sauer, J. R., J. E. Hines, and J. Fallon. 2007. The North American Breeding Bird
      Survey, Results and analysis 1966-2006. Version 10.13.2007. USGS
      Patuxent Wildlife Research Center, Laurel, MD.

Sykes, P. W., Jr., and S. Holzman. 2005. Current range of the eastern
       population of Painted Bunting (Passerina ciris). Part 1: Breeding.
       North American Birds 59: 4-17.

Sykes, P. W., Jr., S. Holzman, and E. E. Iñigo-Elias. 2007. Current range of
      the eastern population of Painted Bunting (Passerina ciris). Part II:
       Winter range. North American Birds 61: 378-406.

Thompson, C. W. 1991a. The sequence of molts and plumages in Painted
      Buntings and implications for delayed plumage maturation. Condor 93:
       209-235.

Thompson, C. W. 1991b. Is the Painted Bunting actually two species? Problems
        determining species limits between allopatric populations. Condor 93:
       987-1000.