1. 1. Ubuka T, Mizuno T, Fukuda Y, Bentley GE, Wingfield JC, Tsutsui K. (2013).RNA interference of gonadotropin-inhibitory hormone gene induces aggressive and sexual behaviors in birds. Gen Comp Endocrinol. 181:179-86.


  1. 2.Ubuka T, Mukai M, Wolfe J, Beverly R, Clegg S, Wang A, Hsia S, Li M, Krause JS, Mizuno T, Fukuda Y, Tsutsui K, Bentley GE, Wingfield JC. (2012). RNA interference of gonadotropin-inhibitory hormone gene induces arousal in songbirds. PLoS ONE. 7(1):e30202.

2.Perfito N, Jeong SY, Silverin B, Calisi RM, Bentley GE, Hau M. (2012) Anticipating spring: wild populations of great tits (Parus major) differ in expression of key genes for photoperiodic time measurement PLoS ONE 7(4):e34997.

3. Tsutsui K, Ubuka T, Bentley GE, Kriegsfeld LJ. (2012) Gonadotropin-inhibitory hormone (GnIH): Discovery, progress and prospect. General and Comparative Endocrinology 177:305-314.

4.Oishi H, Klausen C, Bentley GE, Osugi T, Tsutsui K, Gilks CB, Yano T, Leung PC. (2012) The human gonadotropin-inhibitory hormone ortholog RFamide-related peptide-3 suppresses gonadotropin-induced progesterone production in human granulosa cells. Endocrinology 153:3435-3445.

5.Lopes PC, Wingfield JC, Bentley GE. (2012) Lipopolysaccharide injection induces rapid decrease of hypothalamic GnRH mRNA and peptide, but does not affect GnIH in zebra finches. Hormones and Behavior 62: 173-179.

6.Lopes PC, Adelman J, Wingfield JC, Bentley GE (2012). Social context modulates sickness behavior. Behavioral Ecology and Sociobiology 66:1421-1428.

7. Ubuka T, Mizuno T, Fukuda Y, Bentley GE, Wingfield JC, Tsutsui K. (2012) RNA interference of gonadotropin-inhibitory hormone gene induces aggressive and sexual behaviors in birds. General and Comparative Endocrinology doi: 10.1016/j.ygcen.2012.09.010. [Epub ahead of print].

8.Perfito N, Zann RA, Hau M, Bentley GE (2012). Seasonal-like variation in song system volume in wild zebra finches. General and Comparative Endocrinology (under revision).

  1. 9. Bentley, GE, Calisi, RM (2012). Season- and context-dependent sex differences in melatonin receptor activity in a forebrain song control nucleus: studies from the lab and a semi-natural environment. Hormones and Behavior (in press).

  1. 10. Christensen A, Bentley GE, Cabrera R, Ortega HH, Perfito N, Wu TJ, Micevych P (2012). Hormonal regulation of female reproduction. Hormone and Metabolic Research Jul;44(8):587-91


  1. 11.Calisi RM, Díaz-Muñoz SL, Wingfield JC, Bentley GE. (2011). Social and breeding status are associated with the expression of GnIH. Genes, Brain and Behavior. 10:557-564. [COVER ARTICLE].

  1. 12.Nicole Perfito, Richard Zann, Takayoshi Ubuka, George Bentley, and Michaela Hau (2011). Potential Roles For GnIH And GnRH-II In Reproductive Axis Regulation Of An Opportunistically Breeding Songbird. General and Comparative Endocrinology 173:20-26

  1. 13. McGuire NL, Kangas K, Bentley GE. (2011). Effects of melatonin on peripheral reproductive function: regulation of testicular GnIH and testosterone. Endocrinology. 152:3461-3470.


  1. 14. Vishwajit S. Chowdhury, Kazutoshi Yamamoto, Takayoshi Ubuka, George E. Bentley, Atsuhiko Hattori, and Kazuyoshi Tsutsui (2010). Melatonin Stimulates the Release of Gonadotropin-Inhibitory Hormone by the Avian Hypothalamus Endocrinology 151:271-280.

  1. 15. A.O. Mason, S. Duffy, S. Zhao, T. Ubuka, G. E. Bentley, K. Tsutsui, R. Silver, and L.J. Kriegsfeld (2010). Photoperiod and Reproductive Condition Interact to Affect RFamide-Related Peptide (RFRP) Expression in Syrian Hamsters (Mesocricetus auratus). Journal of Biological Rhythms 25: 176-185.

  1. 16. Nicolette L. McGuire and George E. Bentley (2010). A functional neuropeptide system in vertebrate gonads: Gonadotropin inhibitory hormone and its receptor in testes of field-caught house sparrow (Passer domesticus). General and Comparative Endocrinology 166: 565-572

  1. 17. Sheng Zhao, Edward Zhu, Christina Yang, George E. Bentley, Kazuyoshi Tsutsui, Lance J. Kriegsfeld. (2010). RFamide-Related Peptide (RFRP) and mRNA Expression in Mammalian Testis: Association with the Spermatogenic Cycle. Endocrinology 151: 617-627.

  1. 18. Julie A. Woodruff, Eileen A. Lacey, and George Bentley (2010). Contrasting Fecal Corticosterone Metabolite Levels in Captive and Free-Living Colonial Tuco-Tucos (Ctenomys sociabilis). Journal of Experimental Zoology 313:498-507

  1. 19. Tsutsui K, Bentley GE, Bedecarrats G, Osugi T, Ubuka T, Kriegsfeld LJ (2010). Gonadotropin-inhibitory hormone (GnIH) and its control of central and peripheral reproductive function. Frontiers in Neuroendocrinology 31: 84-295.

  1. 20. Tsutsui K, Bentley GE, Kriegsfeld LJ, Osugi T, Seong JY, Vaudry H (2010). Discovery and evolutionary history of gonadotrophin-inhibitory hormone and kisspeptin: new key neuropeptides controlling reproduction. Journal of Neuroendocrinology. 22:716-727.

  1. 21. Kriegsfeld LJ, Gibson EM, Williams WP 3rd, Zhao S, Mason AO, Bentley GE, Tsutsui K (2010). The roles of RFamide-related peptide-3 in mammalian reproductive function and behaviour. Journal of Neuroendocrinology. 22:692-700.

  1. 22. McGuire NL and Bentley GE (2010). Neuropeptides in the Gonads: From Evolution to Pharmacology. Frontiers in Integrative Pharmacology 1:114. doi:10.3389/fphar.2010.00114

  1. 23.James S. Adelman, George E. Bentley, John C. Wingfield, Lynn B. Martin, and Michaela Hau (2010). Population differences in fever and sickness behaviors in a wild passerine: a role for cytokines. Journal of Experimental Biology 213:4099-4109.

  1. 24. Bentley GE, Tsutsui K, Kriegsfeld LJ. (2010) Recent studies of gonadotropin-inhibitory hormone (GnIH) in the mammalian hypothalamus, pituitary and gonads. Brain Research. 1364:62-71.


  1. 25.K. Tsutsui, E. Saigoh, H. Yin, T. Ubuka, V. S. Chowdhury, T. Osugi, K. Ukena, P. J. Sharp, J. C. Wingfield and G. E. Bentley (2009). A New Key Neurohormone Controlling Reproduction, Gonadotropin-Inhibitory Hormone (GnIH) in Birds: Discovery, Progress and Prospect. Journal of Neuroendocrinology 21: 271-275

  1. 26. George E. Bentley, Takayoshi Ubuka, Nicolette L. McGuire, Rebecca Calisi, Nicole Perfito, Lance J. Kriegsfeld, John C. Wingfield and Kazuyoshi Tsutsui (2009). GnIH: A Multifunctional Neuropeptide. Journal of Neuroendocrinology 21: 276-281

  1. 27. Takayoshi Ubuka, Hank Lai, Mari Kitani, Akane Suzuuchi, Viet Pham, Penelope A. Cadigan, Vishwajit S. Chowdhury, Kazuyoshi Tsutsui & George E. Bentley (2009). Gonadotropin-Inhibitory Hormone Distribution in Rhesus Macaque Brain Journal of Comparative Neurology 517: 841-855.

  1. 28.Takayoshi Ubuka and George E. Bentley (2009). Identification, localization and regulation of Passerine gonadotropin-releasing hormone-I messenger RNA. Journal of Endocrinology 201:81-87.

  1. 29. Elizabeth D. Kirby, Anna C. Geraghty, Takayoshi Ubuka, George E. Bentley*, Daniela Kaufer* (2009). Stress increases putative gonadotropin inhibitory hormone and decreases luteinizing hormone in male rats. Proceedings of the National Academy of Sciences 106: 11324-11329. * denotes equal senior authorship/contribution.

  1. 30. Takayoshi Ubuka, Penelope A. Cadigan, Ariel Wang, Jennifer Liu and George E. Bentley (2009) Identification of European starling GnRH-I precursor mRNA and its seasonal regulation General and Comparative Endocrinology 162: 301-306.

  1. 31. Rebecca M. Calisi and George E. Bentley (2009). Laboratory and Field Experiments: Are They the Same Animal? Hormones and Behavior 56: 1-10.

  1. 32. Wilbur P. Williams III, Erin M. Gibson, Connie Wang, Stephanie Tjho, Neera Khattar, George E. Bentley, Kazuyoshi Tsutsui, and Lance J. Kriegsfeld (2009). Proximate and Ultimate Mechanisms Driving Circadian Control of Neuroendocrine Function:  Lessons from the Young and Old. Integrative and Comparative Biology doi:10.1093/icb/icp041

  1. 33. Nicole Perfito and George E. Bentley (2009). Opportunism, photoperiodism and puberty: Different mechanisms or variations on a theme? Integrative and Comparative Biology doi:10.1093/icb/icp052

  1. 34. Noah T. Ashley, Quentin R. Hays, George E. Bentley and John C. Wingfield (2009). Testosterone Treatment Diminishes Sickness Behavior in Male Songbirds Hormones and Behavior 56: 169-176.

  1. 35. Takayoshi Ubuka, Kevin Morgan, Adam J. Pawson, Tomohiro Osugi, Vishwajit S. Chowdhury, Hiroyuki Minakata, Kazuyoshi Tsutsui, Robert P. Millar, and George E. Bentley (2009). Identification of Human GnIH Homologs, RFRP-1 and RFRP-3, and the Cognate Receptor, GPR147 in the Human Hypothalamic Pituitary Axis. PLoS ONE 4(12): e8400. doi:10.1371/journal.pone.0008400.


  1. 36. Small, T.W., Sharp, P.J., Bentley, G.E., Millar, R.P., Tsutsui, K., Mura, E., and Deviche, P. (2008) Photoperiod-independent hypothalamic regulation of luteinizing hormone secretion in a free-living Sonoran Desert bird, the Rufous-winged Sparrow (Aimophila carpalis). Brain Behavior and Evolution 71: 127-142.

  1. 37. Small, T.W., Sharp, P.J., Bentley, G.E., Millar, R.P Tsutsui, K., Strand, C.R., and Deviche, P. (2008) Auditory stimulation of reproductive function in male Rufous-winged Sparrows, Aimophila carpalis. Hormones and Behavior 53: 28-39.

  1. 38.Small, T.W., Sharp, P.J., Bentley, G.E., and Deviche, P. (2008) Relative photorefractoriness, prolactin, and reproductive regression in a flexibly breeding Sonoran Desert passerine, the Rufous-winged Sparrow, Aimophila carpalis. Journal of Biological Rhythms 23: 69-80.

  1. 39. Alexander J. Coverdill, George E. Bentley and Marilyn Ramenofsky (2008). Circadian Control of Migratory Restlessness in Gambel’s White-Crowned Sparrow (Zonotrichia leucophrys gambelii). Journal of Biological Rhythms 23: 59-68.

  1. 40. George E. Bentley, Takayoshi Ubuka, Nicolette L. McGuire, Vishwajit S. Chowdhury, Yoshihiro Morita, Tetsu Yano, Itaru Hasunuma, Molly Binns, John C. Wingfield and Kazuyoshi Tsutsui (2008). Gonadotropin-Inhibitory Hormone and Its Receptor in the Avian Reproductive System. General and Comparative Endocrinology 156: 34-43. [COVER ARTICLE].

  1. 41. Perfito, N., Kwong, J.M.Y., Bentley, G.E., Hau, M. (2008). Cue hierarchies and testicular development: Is food a more potent stimulus than photoperiod in an opportunistic breeder (Taeniopygia g. guttata)? Hormones and Behavior 53: 567-572.

  1. 42. Tyler J. Stevenson, George E. Bentley, Takayoshi Ubuka, Lutgarde Arckens, Elizabeth Hampson, Scott A. MacDougall-Shackleton (2008). Effects of social cues on GnRH-I, GnRH-II and reproductive physiology in female house sparrows (Passer domesticus). General and Comparative Endocrinology 156:385-394.

  1. 43. Takayoshi Ubuka, Stephanie Kim, Yu-chi Huang, Jessica Reid, Jennifer Jiang, Tomohiro Osugi, Vishwajit S. Chowdhury, Kazuyoshi Tsutsui and George E. Bentley (2008). Gonadotropin-inhibitory Hormone Neurons Interact Directly with Gonadotropin-releasing Hormone-I and -II Neurons in European Starling Brain. Endocrinology 149:268-278.

  1. 44. Greives, T.J., Kriegsfeld, L.J., Bentley, G.E., Tsutsui, K. and Demas, G.E. (2008). Recent advances in reproductive neuroendocrinology: a role for RFamide peptides in seasonal reproduction? Proceedings of the Royal Society of London B 275: 1943-1951.

  1. 45. Calisi R.M., Rizzo N.O. and Bentley, G.E. (2008). Seasonal differences in hypothalamic EGR-1 and GnIH expression following capture-handling stress in House sparrows (Passer domesticus). General and Comparative Endocrinology 157: 283-287.

  1. 46. Erin M. Gibson, Stephanie A. Humber, Sachi Jain, Wilbur P. Williams III, Sheng Zhao, George E. Bentley, Kazuyoshi Tsutsui and Lance J. Kriegsfeld (2008). Alterations in RFamide-related peptide expression are coordinated with the preovulatory luteinizing hormone surge. Endocrinology 149: 4958-4969. [COVER ARTICLE].

  1. 47. Takayoshi Ubuka, Nicolette L. McGuire, Rebecca M. Calisi, Nicole Perfito and George E. Bentley (2008). The control of reproductive physiology and behavior by gonadotropin-inhibitory hormone. Integrative and Comparative Biology 48: 560-569.

  1. 48. Jeremy T. Smith, Lique M. Coolen, Lance J. Kriegsfeld, Ika P. Sari, Mohammad R. Jaafarzadehshirazi, Matthew Maltby, Katherine Bateman, Robert L. Goodman, Alan J. Tilbrook, Takayoshi Ubuka, George E. Bentley, Iain J. Clarke and Michael N. Lehman (2008). Variation in kisspeptin and gonadotropin-inhibitory hormone expression and terminal connections to GnRH neurons in the brain: a novel medium for seasonal breeding in the sheep. Endocrinology 149: 5770-5782.

  1. 49. Iain J. Clarke, Ika P. Sari, Qi Yue, Jeremy Smith, Helena C. Parkington, Takayoshi Ubuka, Javed Iqbal, Qun Li, Alan Tilbrook, Kevin Morgan, Adam J. Pawson, Kazuyoshi Tsutsui, Robert P. Millar and George E. Bentley (2008). Potent action of RFRP-3 on pituitary gonadotropes indicative of an hypophysiotropic role in the negative regulation of gonadotropin secretion. Endocrinology 149: 5811-5821.

  1. 50. George E. Bentley (2008). Biological Timing: Sheep, Dr. Suess, and Mechanistic Ancestry. Current Biology 18: R736-738.

  1. 51. Kazuyoshi Tsutsui and George E. Bentley (2008). Gonadotropin-Inhibitory Hormone (GnIH): Biosynthesis, Mode of Action and Functional Significance in Birds. Avian Biology Research 1: 175-186.


  1. 52. Nicole Perfito, Richard Zann, George E. Bentley and Michaela Hau (2007). Opportunism at work: habitat predictability affects reproductive strategy in free-living zebra finches. Functional Ecology 21: 291-301.

  1. 53. Cynthia Corbitt, Danielle Satre, Larry A. Adamson, Gary Cobbs and George E. Bentley (2007). Dietary phytoestrogens and photoperiodic response in a male songbird, the Dark-eyed Junco (Junco hyemalis). General and Comparative Endocrinology 154: 16-21.

  1. 54. Kazuyoshi Tsutsui , George E. Bentley, Takayoshi Ubuka, Etsuko Saigoh, Hong Yin, Tomohiro Osugi, Kazuhiko Inoue, Vishwajit S. Chowdhury, Kazuyoshi Ukena, Nick Ciccone, Peter J. Sharp, John C. Wingfield (2007). Review: The general and comparative biology of gonadotropin-inhibitory hormone (GnIH). General and Comparative Endocrinology 153: 365-370.

  1. 55. Christopher K. Thompson, George E. Bentley, Eliot A. Brenowitz (2007). Rapid seasonal-like regression of the adult avian song control system. Proceedings of the National Academy of Sciences 104: 15520-15525.

  1. 56. Jodie M. Jawor, Joel W. McGlothlin, Joseph M. Casto, Timothy J. Greives, Eric A. Snajdr, George E. Bentley, Ellen D. Ketterson (2007). Testosterone response to GnRH in a female songbird varies with stage of reproduction: implications for adult behaviour and maternal effects. Functional Ecology 21: 767-775.

  1. 57. George E. Bentley, Takayoshi Ubuka, Nicole Perfito, Yu-Chi Huang, Jennifer Jiang, Stephanie Kim, Kazuyoshi Ukena, Tomohiro Osugi, Sara O’Brien, Alistair Dawson, Kazuyoshi Tsutsui and John C. Wingfield (2007). Gonadotropin-Inhibitory Hormone in Seasonally-Breeding Songbirds: Form and Function. Journal of Ornithology 148:S521-S526.

  1. 58. Kazuyoshi Tsutsui, Takayoshi Ubuka, Hong Yin, Tomohiro Osugi, Kazuyoshi Ukena, George E. Bentley, Peter J. Sharp, John C. Wingfield (2007). Review: Discovery of gonadotropin-inhibitory hormone in a domesticated bird, and its mode of action and functional significance. Journal of Ornithology 148: S515-520.

  1. 59. Nicole Perfito, George E. Bentley and Michaela Hau (2006). Tonic activation of brain GnRH immunoreactivity despite reduction of peripheral reproductive parameters in opportunistically breeding zebra finches. Brain, Behavior and Evolution 67: 123-134.


  1. 60. K. Tsutsui, T. Ubuka, H. Yin, T. Osugi, K. Ukena, G.E. Bentley,  N. Ciccone,  K. Inoue, V.S. Chowdhury, P.J. Sharp, and J.C. Wingfield (2006). Mode of Action and Functional Significance of Avian Gonadotropin-Inhibitory Hormone (GnIH): A Review. Journal of Experimental Zoology 305A: 801-806.

  1. 61. George E. Bentley, Lance J. Kriegsfeld, Tomohiro Osugi, Kazuyoshi Ukena, Sara O’Brien, Nicole Perfito, Ignacio Moore, John C. Wingfield and Kazuyoshi Tsutsui (2006). Interactions of Gonadotropin-Releasing Hormone (GnRH) and Gonadotropin-Inhibitory Hormone (GnIH) and in birds and mammals. Journal of Experimental Zoology 305A: 807-814.

  1. 62. Ignacio T. Moore, George E. Bentley, Cheryl Wotus, John C. Wingfield (2006). Photoperiod-independent changes in immunoreactive brain gonadotropin-releasing hormone (GnRH) in a free-living, tropical bird. Brain, Behavior and Evolution 68: 37-44.

  1. 63. Kriegsfeld LJ, Feng-Mei D, Bentley GE, Ubuka T, Tsutsui, K, Silver, R. (2006). Identification and Characterization of a Gonadotropin-Inhibitory System in the Brains of Mammals. Proceedings of the National Academy of Sciences 103: 2410-2415.

  1. 64. Takayoshi Ubuka, Kazuyoshi Ukena, Peter J. Sharp, George E. Bentley and Kazuyoshi Tsutsui (2006). Gonadotropin-inhibitory hormone inhibits gonadal development and maintenance by decreasing gonadotropin synthesis and release. Endocrinology 147:1187-1194.

  1. 65. George E. Bentley, Jay P. Jensen, Gurpinder J. Kaur, Douglas W. Wacker, Kazuyoshi Tsutsui and John C. Wingfield (2006). Rapid inhibition of female sexual receptivity by gonadotropin-inhibitory hormone (GnIH). Hormones and Behavior 49: 550-555. [COVER ARTICLE].

  1. 66. G. E. Bentley, N. Perfito, I.T. Moore, K. Ukena, K. Tsutsui, and J.C. Wingfield (2006). Gonadotropin-Inhibitory Hormone in Birds: Possible Modes of Action.  Acta Zoologica Sinica 52: 178-182.

  1. 67. Jodie M. Jawor, Joel W. McGlothlin, Joseph M. Casto, Timothy J. Grieves, Eric A. Snajdr, George Bentley, Ellen D. Ketterson (2006). Seasonal and individual variation in response to GnRH challenge in male dark-eyed juncos (Junco hyemalis). General and Comparative Endocrinology 149: 182-189.

  1. 68. Spinney, L.H., Bentley, G.E., Hau M. (2006). Endocrine correlates of alternative phenotypes in the white-throated sparrow (Zonotrichia albicollis). Hormones and Behavior 50: 762-711.2005: 


  1. 69. Takayoshi Ubuka, George E. Bentley, Kazuyoshi Ukena, John C. Wingfield and Kazuyoshi Tsutsui (2005). Melatonin induces the expression of gonadotropin-inhibitory hormone in the avian brain. Proceedings of the National Academy of Sciences 102: 3052-3057. Nature Reviews Highlight [Nature Reviews Neuroscience 6:264 (2005)] 

  1. 70. K. Beebe, G.E. Bentley & M. Hau (2005). A tropical rainforest bird lacks photorefractoriness in the wild, despite high photosensitivity. Functional Ecology 19: 505-512


  1. 71. George E. Bentley, Ignacio T. Moore, Stacia A. Sower and John C. Wingfield (2004). Evidence for a Novel Gonadotropin-Releasing Hormone in Hypothalamic and Forebrain Areas in Songbirds. Brain, Behavior and Evolution 63: 34-46.

  1. 72. Hahn, T. P., M. E. Pereyra, S. M. Sharbaugh and G. E. Bentley (2004). Physiological responses to photoperiod in three cardueline finch species.  General and Comparative Endocrinology 137: 99-108.

  1. 73. T. Osugi, K. Ukena, G.E. Bentley, S. O’Brien, I.T. Moore, J.C. Wingfield and K. Tsutsui (2004). Gonadotropin-inhibitory hormone in Gambel’s white-crowned sparrows: cDNA identification, transcript localization and functional effects in laboratory and field experiments. Journal of Endocrinology 182: 33-42.


  1. 74. George E. Bentley, Natalie C. Audage, Era K. Hanspal, Gregory F. Ball and Thomas P. Hahn (2003). Photoperiodic response of the hypothalamo-pituitary-gonad axis in male and female canaries, Serinus canaria. Journal of Experimental Zoology 296A: 143-151.

  1. 75. George E. Bentley, Nicole Perfito, Kazuyoshi Ukena, Kazuyoshi Tsutsui, and John C. Wingfield. (2003) Gonadotropin-Inhibitory Peptide in Song Sparrows (Melospiza melodia) in Different Reproductive Conditions, and in House Sparrows (Passer domesticus) Relative to Chicken-Gonadotropin-releasing hormone. Journal of Neuroendocrinology 15: 794-802.

  1. 76. George E. Bentley (2003). Melatonin receptor density in Area X of European starlings is correlated with reproductive state and is unaffected by plasma melatonin concentration. General and Comparative Endocrinology 134: 187-192


  1. 77. Catherine J. Auger, George E. Bentley, Anthony P. Auger, Mira Ramamurthy and Gregory F. Ball (2002). Expression of CREB-binding protein in the song control system and hypothalamus of adult European starlings  (Sturnus vulgaris). Journal of Neuroendocrinology 14: 805-813.

  1. 78. George E. Bentley and Eliot A. Brenowitz (2002). Three-dimensional analysis of avian song control nuclei. Journal of Neuroscience Methods 121:75-80.


  1. 79. George E. Bentley (2001). Unraveling the Enigma: The Role of Melatonin in Seasonal Processes in Birds. Microscopy Research and Technique Special Issue: “The Avian Pineal Gland” 53: 63-71.

  1. 80. Alistair Dawson, Verdun M. King, George E. Bentley and Gregory F. Ball (2001). Photoperiodic control of seasonality in birds. Journal of Biological Rhythms 16: 365-380.


  1. 81. Timothy Q. Gentner, Stewart H. Hulse, George E. Bentley, and Gregory F. Ball (2000). Individual vocal recognition and the effect of partial lesions to HVc on discrimination, learning, and categorization of conspecific song in adult songbirds. Journal of Neurobiology 42: 117-133.

  1. 82. George E. Bentley, Brian D. Spar, Scott A. MacDougall-Shackleton, Thomas P. Hahn and Gregory F. Ball (2000). Photoperiodic regulation of the reproductive axis in male zebra finches, Taeniopygia guttata. General and Comparative Endocrinology 117: 449-455.

  1. 83. George E. Bentley, John C. Wingfield, Martin L. Morton, and Gregory F. Ball (2000). Conspecific and heterospecific male song both have stimulatory effects upon the reproductive axis in female songbirds. Hormones and Behavior 37: 179-189.

  1. 84. George E. Bentley, Alistair Dawson and Arthur R. Goldsmith (2000). Lack of gonadotrophin-releasing hormone neuron response to decreasing photoperiod in thyroidectomised male starlings (Sturnus vulgaris). Journal of Experimental Zoology 287: 74-79.

  1. 85. George E. Bentley and Gregory F. Ball (2000). Photoperiod-dependent and -independent regulation of melatonin receptors in the forebrain of songbirds. Journal of Neuroendocrinology 12: 745-752. [COVER ARTICLE].

  1. 86. Deborah L. Duffy, George E. Bentley, Deborah L. Drazen and Gregory F. Ball (2000). The effects of testosterone on cell-mediated and humoral immunity in male and female European starlings. Behavioral Ecology 6: 654-662.


  1. 87. George E. Bentley, Thomas J. Van’t Hof and Gregory F. Ball (1999). Seasonal neuroplasticity in the songbird telencephalon: A role for melatonin. Proceedings of the National Academy of Sciences 96: 4674-4679.

  1. 88. Daniel J. Bernard, George E. Bentley, Jacques Balthazart, Fred W. Turek and Gregory F. Ball (1999). Androgen receptor, estrogen receptor a, and estrogen receptor b show distinct patterns of expression in forebrain song control nuclei of European starlings. Endocrinology 140: 4633-4643.

  1. 89. Deborah L. Duffy, George E. Bentley and Gregory F. Ball (1999). Does sex or photoperiodic condition influence ZENK induction in response to song in European starlings? Brain Research 844:78-82. 


  1. 90. G.E. Bentley, A.R. Goldsmith, A. Dawson, C. Briggs and M. Pemberton (1998). Decreased light intensity alters the perception of day length by male European starlings (Sturnus vulgaris). Journal of Biological Rhythms 13: 148-158.

  1. 91. G.E. Bentley and R.H.C. Bonser (1998). Long-term hypothyroidism causes decreased bone competence in male European starlings, Sturnus vulgaris. Journal of Experimental Zoology 281: 602-607.

  1. 92. George E. Bentley, Gregory E. Demas, Randy J. Nelson and Gregory F. Ball (1998). Melatonin, immunity and cost of reproductive state in male European starlings. Proceedings of the Royal Society B 265: 1191-1195.

  1. 93. P.D. Lewis, G.C. Perry, T.R. Morris, J.A. Douthwaite and G.E. Bentley (1998). Effect of constant and of changing photoperiod on plasma LH and FSH concentrations and age at first egg in layer strains of domestic pullets. British Poultry Science 39: 662-670.


  1. 94. G.E. Bentley, A.R. Goldsmith, T.S. Juss and A. Dawson (1997). The effects of nerve growth factor and anti-nerve growth factor antibody on the neuroendocrine reproductive system in the European starling, Sturnus vulgaris. Journal of Comparative Physiology A, 181: 133-141.

  1. 95. G.E. Bentley, A.R. Goldsmith, A. Dawson, L.M. Glennie, R.T. Talbot and P.J. Sharp (1997). Photorefractoriness in European starlings (Sturnus vulgaris) is not dependent upon the long-day-induced rise in plasma thyroxine. General and Comparative Endocrinology 107: 428-438.

  1. 96. V.M. King, G.E. Bentley and B.K. Follett (1997). A direct comparison of photoperiodic time measurement and the circadian system in European starlings and Japanese quail. Journal of Biological Rhythms 12: 431-442.

  1. 97. George E. Bentley (1997). Thyroxine and Photorefractoriness in Starlings. Poultry and Avian Biology Reviews 8: 123-139.