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171. Ligon, R.A., and G.E. Hill.2009. Do adult eastern bluebirds, Sialia sialis, males recognize juvenile-specific traits? Animal Behaviour 77:1267-1272.

170. Ligon, R.A., M. Liu, and G.E. Hill. 2009. Adoption by a territorial passerine. The Wilson Journal of Ornithology 121:830-834.

169. Ligon, R.A., N. Burkett, M. Liu, G.E. Hill, H.K. Hassan, and T.R. Unnasch. 2009. Assessing mosquito feeding patterns on nestling and brooding adult birds using microsatellite markers. The American Journal of Tropical Medicine and Hygiene 81:534-537.

168. Liu M., Siefferman L., Mays H.L. and G.E. Hill. 2009. A field test of female mate preference for plumage coloration in eastern bluebirds. Animal Behaviour 78: 879-885. 

167. Hill, G. E., Hood, W. R. and Huggins, K. 2009. A multifactorial test of the effects of carotenoid access, food intake, and parasite load on production of ornamental feather and bill coloration in American Goldfinches. J. Experimental Biology 212:1225-1233. 

166. Doucet, S. M., and Hill, G. E. 2009. Do museum specimens accurately represent wild birds? A case study of carotenoid, melanin, and structural colours in long-tailed manakins Chiroxiphia linearis. Journal of Avian Biology 40:146-156. 

165. Shawkey, M. D., S. Pillai, G. E. Hill. 2008. Do feather-degrading bacteria affect sexually selected plumage color? Naturwissenschaften 96:123-128. 

164. Badyaev, A. V., Young, R. L., Hill, G. E. and Duckworth, R. A. (2008). Evolution of sex-biased maternal effects in birds. IV. Intra-ovarian growth dynamics can link sex determination and sex-specific acquisition of resources. Journal of Evolutionary Biology 21: 449-460. 

163. Caro T., G. E. Hill, L. Lindstrom, and M. Speed. 2008.The Colours of Animals: from Wallace to the Present Day. II. Conspicuous Colouration. In, C. Smith and G. Beccaloni, Natural Selection and Beyond: the Intellectual Legacy of Alfred Russel Wallace. Oxford University Press, New York.   

162. Mays H.L., Albrecht T., Liu M. and G.E. Hill 2008. Female choice for genetic complementarity in birds: a review. Genetica 134: 147-158. 

161. Siefferman, L. and Hill, GE. 2008. Sex-specific costs of reproduction in the eastern bluebird Sialia sialis. Ibis 150:32-39. 

160. Jonart, L. M., Hill, G. E., and Badyaev, A. V. 2007. Fighting ability and motivation: determinants of dominance and contest strategies in females of a passerine bird. Anim. Behav. 4: 1675-1681. 

159. Polakova, R.,M. Vyskocilova,J-S. Martin, H.L.Mays, G.E. Hill, J. Bryja and T. Albrecht. 2007. A multiplex set of microsatellite markers for the scarlet rosefinch (Carpodacus erythrinus). Molecular Ecology Notes 7: 13751378. 

158. Siefferman, L., and Hill G. E. 2007. The effect of rearing environment on blue structural coloration of easter Bluebirds (Sialia sialis). Behavioral Ecology and Sociobiology 61: 1839-1846. 

157. Shawkey, M. D., S. Pillai, G. E. Hill. S. R. Roberts. 2007. Bacteria as an agent for change in structural plumage color: correlational and experimental evidence. American Naturalist 169: S112-S121. 

156. Hill, G. E. 2007. Melanins and carotenoids as feather colorants and signals. In Reproductive Biology and Phyogeny of Birds. Vol. 6B. Sexual selection, behavior, Conservation, Embryology, and genetic. B. G. M. Jamieson, Ed. Science Publishers, Inc., Enfield, New Hampshire.

155. Liu, M., Siefferman, L. and Hill, G. E.  2007. An experimental test of female choice relative to male structural coloration in eastern bluebirds. Behavioral Ecology and Sociobiology 61:623-630.

154. Doucet, S. M., D. J. Mennill, and Hill, G. E. 2007. The evolution of signal design in manakin plumage ornaments. American Naturalist 169:S62-S80. 

153. Shawkey, M. D. J. Hussain, J. L. Hagelin, A. C. Vollmer, G. E. Hill. 2006. Use of culture-independent methods to compare bacterial assemblages on feathers of Crested and Least Auklets (Aethia cristatella and Aethia pusilla) with those of passerines. Waterbirds 29: 507-510. 

152. Hill, G. E., D. J. Mennill, B. W. Rolek, T. L. Hicks, and K. A. Swiston. 2006. Evidence suggesting that Ivory-billed Woodpeckers exist in Florida. Avian Conservation and Ecology. Écologie et conservation des oiseaux  1: 2. [online] URL:

151. Shawkey, M. D., G. E. Hill, Kevin J. McGraw, W. R. Hood and K. Huggins. 2006. An experimental test of the contributions and condition dependence of microstructure and carotenoids in yellow plumage colouration. Proceedings of Royal Society, Lond. Series B 273:2985-2991. 

150. Estep, L. K., M. D. Shawkey, G. E. Hill. 2006. Carotenoid-based breast plumage color, body condition and clutch size in red fodies (Foudia madagascariensis).Ostrich 77: 164169.

149. Shawkey, M. D., Hauber, M., Estep, L. K., and Hill, G. E. 2006. Evolutionary transitions and structural mechanisms of matte an iridescent plumage coloration in grackles and allies (Icteridae). J. Royal Society Interface 3:777-86. 

148. Navara, K. J., Badyaev, A. V., Mendonca, M. T., and Hill, G. E. 2006. Yolk antioxidants vary with male attractiveness and female condition in the house finch (Carpodacus mexicanus). Phys. and Biochem. Zoology 79: 10981105.  

147. Badyaev, A.V., D. A. Seaman, K.J. Navara, G.E. Hill, M. T. Mendonca. 2006. Evolution of sex-biased maternal effects in birds: III. Adjustment of ovulation order enables sex-specific allocation of hormones, carotenoids, and vitamins. Journal of Evolutionary Biology 19: 10441057. 

146. Shawkey, M. D., Balenger, S., Hill, G. E., Johnson, L., Keyser, A., and Siefferman, L. 2006. Mechanisms of evolutionary change in structural plumage coloration among bluebirds (Sialia spp.). Journal of the Royal Society Interface 3: 527  532. 

145. Navara, KJ, Siefferman, LM, Hill, GE, and Mendonca, MT. 2006. Yolk androgens vary inversely to maternal androgens in Eastern Bluebirds: An experimental study. Functional Ecology. 20: 449-456. 

144. Shawkey, M. D., and  G. E. Hill. 2006. Significance of a basal melanin layer to production of non-iridescent structural plumage colour: evidence from an amelanotic Stellers Jay (Cyanocitta stelleri).  J. Exper Biol 209: 1245-1250.

143. Doucet, SM, Shawkey, MD, Hill, GE, and Montgomerie, R. 2006. Iridescent plumage in satin bowerbirds: structure, mechanisms, and nanostructural predictors of individual variation in colour. Journal of Experimental Biology 209, 380-390.

142. Hill, G. E. 2006. Female mate choice for ornamental coloration. In Bird Coloration, Volume 2. Function and Evolution. G. E. Hill and K. J. McGraw, eds.  Havard Univ Press, Cambridge, MA.

141. Hill, G. E. 2006. Environmental regulation of ornamental coloration. In Bird Coloration, Volume 1. Mechanisms and measurements.  pp 507-560. G. E. Hill and K. J. McGraw, eds.  Havard Univ Press, Cambridge, MA.

140. Unnasch, R. S., T. Sprenger, C. R. Katholi, E. W. Cupp, G. E. Hill and T. R. Unnasch. 2006. A dynamic transmission model of Eastern Equine Encephalomyelitis Virus. Ecological Modeling 192: 425440

139. Navara, KJ, Hill, GE, and MT Mendonça. 2006. Yolk androgen deposition as a compensatory strategy.  Behavioral Ecology and Sociobiology 60: 392-398.

138. Wang, Z, K. Farmer, G. E. Hill, S. V. Edwards. 2006. A cDNA macroarray approach to parasite-induced gene expression changes in a songbird host: genetic response of House Finches to experimental infection by Mycoplasma gallisepticum. Molecular Ecology 15: 1263-1273. 

137. Siefferman, L., Navara, K. J. and Hill GE. 2006. Egg coloration is correlated with female condition in eastern bluebirds (Sialia sialis). Behavioral Ecology and Sociobiology 59: 651-656.

136. Navara, KJ, Hill, GE, and Mendonca, MT. 2006. Yolk testosterone stimulate growth and immunity in house finch chicks. Physiological and Biochemical Zoology 79: 550-555. 

135. Mennill, D. J., A. V. Badyaev, L. M.  Jonart, and G. E. Hill. 2006. Male house finches with elaborate songs have higher reproductive performance. Ethology 112: 174-180. 

134. Siefferman, L and Hill, G. E. 2005. Blue structural coloration of male eastern bluebirds Sialia sialis predicts incubation provisioning to females. J. Avian Biol. 36: 488-493.


133. Estep, L. K., Mays, H., Keyser, A. J., Ballentine, B. E. and Hill, G. E. 2005. Effects of breeding density and plumage coloration on mate guarding and cuckoldry in blue grosbeaks (Passerina caerulea) Canadian Journal of Zoology 83 1143-1148.


132. Siefferman, L. and Hill GE. 2005. Evidence for sexual selection on structural plumage coloration in female eastern bluebirds (Sialia sialis). Evolution 59:18191828.


131. Gilbert , W. M.,  P. M. Nolan, A. M. Stoehr, and G. E. Hill. 2005. Filial cannibalism at a House Finch nest. Wilson Bulletin 117:413-415.


130. Shawkey, M. D., and  G. E. Hill. 2005. Carotenoids need nanostructures to shine. Biology Letters 1:121-124.


129. Navara, KJ, Hill, GE, and MT Mendonça. 2005. Variable effects of yolk androgens on growth, survival, and immunity in bluebird nestlings. Physiological and Biochemical Zoology 78: 570-578. 


128. Hill, G. E., and Farmer, K. L. 2005. Carotenoid-based plumage coloration predicts resistance to a novel parasite in the house finch. Naturwissenschaften 92: 30-34.


127. Farmer, K. L.; Hill, G. E.; and Roberts, S. R. 2005. Susceptibility of wild songbirds to the house finch strain of Mycoplasma gallisepticum. J. Wildlife Disease 41: 317-325. 


126. Shawkey, M. D., K. M. Mills, C. R. Dale, and G. E. Hill. 2005. Microbial diversity of wild bird feathers revealed through molecular phylogenetic and culture-based techniques. Microbial Ecology 50 :40-47.


125. McGraw, K. J., J. Hudon, G. E. Hill, and R. S. Parker. 2005. A simple and inexpensive chemical test for behavioral ecologists to determine the presence of carotenoid pigments in animal tissues. Behavioral Ecology and Sociobiology 57:391397. 


124. Siefferman, L., and Hill, G. E. 2005. Male eastern bluebirds trade future ornamentation for current reproductive investment. Biology Letters 1: 208-211.  


123. McGraw, K. J., G. E. Hill, and R. S. Parker. 2005. The physiological costs of being colorful: nutritional control of carotenoid utilization in the American goldfinch (Carduelis tristis). Animal Behaviour 69:653-660.


122. Shawkey, M.D., A.M. Estes, L.M. Siefferman, and G.E. Hill. 2005. The annatomical basis of sexual dichromatism in non-irisdescent ultraviolet-blue structural colouration of feathers. Biological Journal of the Linnean Society 84:259-271.


121. Siefferman, L., G. E. Hill and F. S. Dobson. 2005. Ornamental plumage coloration  and condition is dependent on age in eastern bluebirds.  J Avian Biology 36:428-435.


120. Hill, G. E., Doucet, S. M., and Buchholz, R.  2005. The effect of coccidial infection on iridescent plumage coloration in wild turkeys. Animal Behaviour 69: 387394 . 


119. Siefferman, L. and Hill GE. 2005. UV-blue structural coloration and competition for nest boxes in male eastern bluebirds. Animal Behaviour 69: 67-72.


118. Mays, H. L., and G. E. Hill. 2005. Choosing mates: Good genes versus genes that are a good fit. Trends Ecol. Evol. 19: 554-559.

Auburn University

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