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Boyd, A.W.  1936. Report on the swallow enquiry, 1935.  Ibid., 30: 98-116.

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58 pp.  

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Whitworth Terry L.  2002.  Two new species of North American Protocalliphora (Diptera: Calliphoridae) from bird nests.  Proceedings Entomological Society of Washington., 104(3): 801-811.  

Whitworth Terry L.  2002.  New Species Found in wren nest.  Autumn Birdscope, Cornell University.  

Whitworth, Terry L.  2003. A new species of North American Protocalliphora (Diptera: Calliphoridae) from bird nests.  Proceedings Entomological Society of Washington, 105(3), pp.664-673.  

Whitworth Terry L.  2003.  A key to the puparia of 27 species of North American Protocalliphora Hough (Diptera: Calliphoridae) from bird nests and two new puparial descriptions.  Proceedings Entomological Society of Washington, 105(4), pp.995-1033.

Whitworth Terry L. 2006. Keys to the genera and species of blow flies (Diptera: Calliphordae) of America north of Mexico. Proceedings Entomological Society of Washington 108(3): pp.689-725.  Click here for Spanish language version.
Tips For Using The Keys More Effectively And Errata

Whitworth T.L. and G.F. Bennett  1992  Pathogenicity of larval Protocalliphora (Diptera: Calliphoridae) parasitizing nestling birds.  Can J. Zool 70: 2184-2191.

Whitworth, T.L., R.D. Dawson, H. Magalon, and E. Baudry. 2007. DNA barcoding cannot reliably identify species of the blowfly genus Protocalliphora (Diptera:Calliphoridae). Proc. R. Soc. B 274: 1731-1739.  

Wittmann, K. and R. C. Beason  1992. The effect of blow fly parasitism on nestling eastern bluebird development. J. Field Ornithol., 63(3): 286-293.  

Zach, R.  1982  Nestling house wrens: weight and feather growth.  Can. J. Zool. 60: 1417-1425.  

Zumpt, F.  1965    Myiasis in man and animals in the Old World.  Butterworth & Co., London, England, pp. xv + 267, 1 plate.