The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
- Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
- Burton, P. J. K. 1984. Anatomy and evolution of feeding apparatus in the avian orders Coraciiformes and Piciformes. Bulletin of the British Museum (Natural History) 47:331-443.
- Fowler, ME; Miller, RE. 2003. Zoo and Wild Animal Medicine. Philadelphia: W.B. Saunders Co.
- Fry, C.H., Fry, K. and Harris, A. 1992. Kingfishers, Bee-Eaters and Rollers: A Handbook. Princeton, NJ: Princeton University Press.
- Hackett, S. J., Kimball, R. T., Reddy, S., Bowie, R. C. K., Braun, E. L., Braun, M. J., Chojnowski, J. L., Cox, W. A., Han, K.-L., Harshman, J., Huddleston, C. J., Marks, B. D., Miglia, K. J., Moore, W. A., Sheldon, F. H., Steadman, D. W., Witt, C. C., and Yuri, T. 2008. A phylogenomic study of birds reveals their evolutionary history. Science 320(5884):1763-1768.
- R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York