1. Siefferman, L. & G. E. Hill. 2003. Structural and melanin coloration indicate parental effort and reproductive success in male eastern bluebirds (Sialia Sialis). Behavioral Ecology 14:855-861. [pdf]
2. Shawkey, M. D., A. M. Estes, L. M. Siefferman, & G. E. Hill. 2003. Nanostructure predicts intraspecific variation in structural plumage colour. Proceedings of the Royal Society of London Series B 270:1455-1460. [pdf]
3. McGraw, K. J., K. Wakamatsu, S. Ito, P. M. Nolan, P. Jouventin, F. S. Dobson, R. E. Austic, R. J. Safran, L. Siefferman, G. E. Hill, & R. S. Parker. 2004. You can’t always judge a plumage pigment by its color: carotenoid and melanin content of yellow- and brown-colored feathers in swallows, bluebirds, penguins, and domestic chicks. Condor 106:390-395. [pdf]
4. Robinson, T. J., L. Siefferman, & T. S. Risch. 2004. A quick, inexpensive trap for use with nest boxes. North American Bird Bander 29:116-117. [pdf]
5. Siefferman, L. & G. E. Hill. 2005. UV-blue structural coloration and competition for nest boxes in male eastern bluebirds (Sialia sialis). Animal Behaviour 69:67-72. [pdf]
6. Shawkey, M.D., A.M. Estes, L. Siefferman, & G.E. Hill. 2005. Anatomical basis of sexual dichromatism in non-iridescent ultraviolet-blue structural coloration of feathers. Biological Journal of the Linnean Society 84:259-271. [pdf]
7. Siefferman, L. & G. E Hill. 2005. Male eastern bluebirds trade future ornamentation for current parental investment. Biology Letters 1:208-211. [pdf]
8. Keyser, A. & L. Siefferman 2005. Viability selection against highly ornamented males. Evolutionary Ecology Research 7:595-606. [pdf]
9. Siefferman, L., G. E. Hill, & F. S. Dobson. 2005. Ornamental plumage coloration and condition are dependent on age in eastern bluebirds. Journal of Avian Biology 36:428-435. [pdf]
10. Siefferman, L. & G. E. Hill. 2005. Evidence for sexual selection on structural plumage coloration in female eastern bluebirds. Evolution 59:1819-1828. [pdf]
11. Siefferman, L. & G. E. Hill. 2005. Blue structural coloration predicts incubation provisioning in eastern bluebirds. Journal of Avian Biology 36:488-493. [pdf]
12. Siefferman, L., K. J. Navara, & G. E. Hill. 2006. Egg coloration is correlated with female condition in eastern bluebirds. Behavioral Ecology and Sociobiology 59:651-656. [pdf]
13. Shawkey, M. D., S. L. Balanger, , G. E. Hill, L. S. Johnson, A. J. Keyser, & L. Siefferman. 2006. Mechanisms of evolutionary change in structural plumage coloration among bluebirds (Sialia spp.) Journal of the Royal Society Interface, 3:527-532. [pdf]
14. Navara, K. J., L. Siefferman, G. E. Hill, & M. T. Mendonça. 2006. Yolk androgens vary independently of maternal androgens in eastern bluebirds: an experimental study. Functional Ecology, 20:449-456. [pdf]
15. Siefferman, L. 2006. Egg coloration and recognition of conspecific brood parasitism in Eastern Bluebirds. Ethology, 112:833-838. [pdf]
16. Shawkey, M. D., G. E. Hill, L. Siefferman, & S. Roberts. 2006. Bacteria as an agent for change in structural plumage color: correlational and experimental evidence. American Naturalist, 169:S112-S121.[pdf]
17. Liu, M., Siefferman, L., & G. E. Hill. 2007. An experimental test of female choice relative to male structural coloration in eastern bluebirds. Behavioral Ecology & Sociobiology, 61:623-630. [pdf]
18. Siefferman, L. & G. E. Hill. 2007. The effect of rearing environment on blue structural coloration of eastern bluebirds (Sialia sialis). Behavioral Ecology & Sociobiology, 61:1839-1846. [pdf]
19. Siefferman, L., Y.-J. Wang, Y. P. Wang, & H.-W. Yuan. 2007. Sexual dichromatism, dimorphism, and condition-dependent coloration in Blue-tailed bee-eaters (Merops philippinus). Condor, 109:577-584. [pdf]
20. Siefferman, L. & G. E. Hill. 2007. Sex-specific costs of reproduction in the eastern bluebird. Ibis, 150:32-39. [pdf]
21. Siefferman, L., M. D. Shawkey, R. Bowman, & G. E. Woolfenden. 2008. Information content of structural plumage coloration in Florida scrub-jays Aphelocoma coerulescens. Journal of Ornithology, 149:357-363. [pdf]
22. Liu, M., L. Siefferman, H. Mays, J. Steffen, & G. E. Hill. 2009. A field test of mate choice for structural coloration. Animal Behaviour, 78:879-885. [pdf]
23. Wang, Y. P., L. Siefferman, Y.-J. Wang, T.-S. Ding, & H.-W. Yuan. 2009. Effects of breeding colony site restoration of blue-tailed bee-eaters. Biological Conservation, 142:1748-1753. [pdf]
24. Gangloff, M. M., L. Siefferman, W. Seesock, & C. Webber. 2009. Influence of urban tributaries on freshwater mussel populations in a biologically diverse piedmont (USA) stream. Hydrobiologia, 636:191-201. [pdf]
25. Hill, G. E., L. Siefferman, M. Liu, H. Hassan, & T. Unnasch. 2009. The Effects of West Nile Virus on the Reproductive Success and Overwinter Survival of Eastern Bluebirds in Alabama. Vector-borne and Zoonotic Diseases, 10:159-163. [pdf]
26. Pannkuk, E. L., L. Siefferman, & JA Butts. 2009. Colour phases of the eastern screech owl: a comparison of biomechanical variables of body contour feathers. Functional Ecology, 24:347-353. [pdf]
27. Robinson, T. J., L. Siefferman, & T. S. Risch. 2010. Seasonal tradeoffs in reproductive effort in a multi-brooded passerine. Condor, 112:390-398. [pdf]
28. Boback, S. M. & L. Siefferman. 2010. Variation in color and color change in island and mainland boas (Boa constrictor). Journal of Herpetology, 44:506-515. [pdf]

Manuscripts in Review

• Gangloff, M. M., A. R. Mahon, L. Siefferman, D. C. Campbell, & K. M. Halanych. Molecular systematics of the species-rich and morphologically plastic freshwater bivalve genus Elliptio (Unionidae).
• Surmacki, A., H.-S. Yuan, & L. Siefferman. Effects of sunlight exposure on carotenoid- and structurally-based plumage coloration of Blue-tailed Bee-eaters (Merops philippinus).
• Soley, N., L. Siefferman, K.J., Navara, & G. E. Hill. Influence of hatch order on beggingand coloration of nestling eastern bluebirds.
• Ligon, R.A, L. Siefferman, & G. E. Hill. Invasive fire ants reduce reproductive success and alter the reproductive strategies of a native vertebrate insectivore.
• Liu, M., L. Siefferman, H. Mayes, & G. E. Hill. Egg viability in relation to laying sequence, nest environment, and incubation behavior in Eastern Bluebirds.
• Robinson, T. J., L. Siefferman, & T. S. Risch. The separate effects of eggs and parental quality on nestling condition and ornamentation in eastern bluebirds (Sialia sialis): an experimental approach.
• Ligon, R.A, L. Siefferman, & G. E. Hill. Effects of the Introduced Fire Ant (Solenopsis invicta) on Parental Provisioning and Foraging Behavior of Eastern Bluebirds (Sialia sialis).