- Hamao, S., (in press). A vocalization in male Japanese bush warblers in response to both predators and conspecific females. Ethology.
- Hamao, S., 2022. Acoustic characteristics of songs in a recently established population of the Japanese bush warbler on an oceanic island. Zoological Science 39: 521–528.
- Hamao, S., 2021. Effect of sympatry on discrimination of heterospecific song by varied tits. Animal Behaviour 180: 307-314.
- Hamao, S., Torikai, H., Yoshikawa, M., Yamamoto, Y. and Ijichi, T., 2021. Risk-taking behaviour of bull-headed shrikes that recently colonized islands. Current Zoology, 67: 177–182.
- Hamao, S., Inoue, A. and Kamito, T., 2020. Relationships among song characteristics in Japanese tits. Journal of Ethology, 38: 383–387.
- Hamao, S., 2018. Differences in vocalizations of Japanese bush warblers on Chichijima and Hahajima in the Ogasawara Islands. Bulletin of the National Museum of Nature and Science, Series A (Zoology), 44: 125-132.
- Hamao, S., Komatsu, H. and Shinohara, M., 2018. Geographic variation in Yellow Bunting songs. Ornithological Science, 17: 159-164.
- Hamao, S., 2016. Asymmetric response to song dialects among bird populations: the effect of sympatric related species. Animal Behaviour 119: 143-150.
- Hamao, S., N. Sugita and I. Nishiumi, 2016. Geographic variation in bird songs: examination of the effects of sympatric related species on the acoustic structure of songs. Acta Ethologica, 19: 81-90.
- Hamao, S. and M. Hayama, 2015. Breeding ecology of the Japanese Bush Warbler in the Ogasawara Islands. Ornithological Science, 14: 111-115.
- Hamao, S., 2015. Rapid change in song structure in introduced Japanese Bush-warblers (Cettia diphone) in Hawaii. Pacific Science 69: 59-66.
- Hamao, S., and H. Higuchi, 2013. Effect of introduced Japanese weasels (Mustela itatsi) on the nest height of Japanese Bush-Warblers (Cettia diphone) on Miyake-jima Island, Japan. Wilson Journal of Ornithology 125:426-429.
- Hamao, S., N. Sugita and I. Nishiumi, 2013. Geographical variation in mitochondrial DNA and vocalizations in two resident bird species in the Ryukyu Archipelago, Japan. Bulletin of the National Museum of Nature and Science, Series A (Zoology), 39: 51-62.
- Hamao, S., 2013. Acoustic structure of songs in island populations of the Japanese bush warbler, Cettia diphone, in relation to sexual selection. Journal of Ethology, 31: 9-15.
- S. Hamao. 2011. Seasonal increase in intensity of nest defence against little cuckoos by Japanese bush warblers. Animal Behaviour82: 869-874.
- Hamao, S., Watanabe, M. and Mori, Y. 2011. Urban noise and male density affect songs in the Great Tit Parus major. Ethology Ecology & Evolution 23: 111-119.
- M. Sakagami, S. Hamao & Y.Mori. 2011. Predation of bird nests on Kikai Island of the Amami Islands: differences in predation rate among nesting habitats and identification of predators. Japanese Journal of Ornithology 60: 88-95.
- Shoji Hamao, Tomomi Miyashita, Shinsuke Hagiwara, Yoshihisa Mori. 2010. Seed dispersal by wintering birds in an urban space and relationship between gape width and fruit size. Japanese Journal of Ornithology 59: 139-147.
- Sawabe, K., Isawa, H., Hoshino,K., Sasaki, T., Roychoudhury, S., Higa, Y., Kasai, S., Tsuda, Y., Nishiumi, I., Hisai, N,. Hamao, S. and Kobayashi M. 2010. Host-feeding habits of Culex pipiens and Aedes albopictus (Diptera: Culicidae) collected at the urban and suburban residential areas of Japan. Journal of Medical Entomology 47: 442-450.
- Shoji Hamao. 2010. Territoriality of the island population of the Japanese Bush Warbler Cettia diphone restricta, using radio-telemetry. Miscellaneous Reports of the Institute for Nature Study (41):35-47.
- Shoji Hamao, Kiyono Nishimatsu and Takehiko Kamito. 2009. Predation of bird nests by introduced Japanese weasel Mustela itatsi on an island. Ornithological Science 8 139-146.
- Shoji Hamao. 2008. Syntactical complexity of songs in the Black-browed Reed Warbler Acrocephalus bistrigiceps. Ornithological Science 7: 173-177
- Hamao, S., 2008. The Records of Rare Bird Species in the Institute for Nature Study: the Importance of Capture Method and Collecting of Dead Bodies. Rept. Inst. Nat. Stu. (39): 63-69.
- Hamao, S., M. J. S. Veluz, T. Saitoh & I. Nishiumi, 2008. Phylogenetic relationship and defferences in song structure between the closely related Bush Warblers Cettia seebohmi and C. diphone. Wilson Journal of Ornithology 120: 268-276.
- Hamao, S., 2008. Singing strategies among male Black-browed Reed Warblers Acrocephalus bistrigiceps during the post-fertile period of their mates. Ibis 150: 388–394.
- Hamao, S., 2007. Timing of breeding and food availability in the Japanese Bush Warbler Cettia diphone. Rept. Inst. Nat. Stu. (38): 19-31.
- Hamao, S., 2007. Function and evolution of bird song: a critical reevaluation of fertility announcement hypothesisD Biological Science (Tokyo) 59: 68-76.
- Hamao, S., M. J. S. Veluz & I. Nishiumi, 2006. Species recognition by song between the Luzon Bush Warbler, Cettia seebohmi, and the Japanese Bush Warbler, C. diphone. Mem. Natn. Sci. Mus. (44): 21-29.
- Hamao, S., M. J. S. Veluz & I. Nishiumi, 2006. Difference in morphology between two closely related Bush Warblers, Cettia diphone and C. seebohmi, in Japan and the Philippines. Rept. Inst. Nat. Stu. (37): 17-26.
- Hamao, S., H. Yamashita, N. Yamaguchi & K. Ueda, 2006. Factors affecting the habitat of the Japanese Pygmy Woodpecker in urban open spaces. Japanese Journal of Ornithology 55: 96-101.
- Hamao, S., S. Norinomiya, S. Kanoya & T. Ando, 2005. Avifauna of the Akasaka Imperial Gardens, Tokyo, April 2002-March 2004
. Mem. Natn. Sci. Mus. (39): 13-20. - Hamao, S. & D. S. Saito, 2005. Extrapair fertilizations in the Black-browed Reed Warbler: (Acrocephalus bistrigiceps) :effects of mating status and nesting cycle of cuckolded and cuckolder
males. Auk 122: 1086-1096.
- Hamao, S., 2005. Predation risk and nest-site characteristics of the Black-browed Reed Warbler (Acrocephalus bistrigiceps): the role of plant strength. Ornithological Science 4: 147-153.
- Hamao, S., T. Ida, H. Watanabe & H. Higuchi, 2005. Prey attracting and disturbing behaviors in herons: bill-vibrating and other ingenious foraging techniques. Strix 23: 91-104.
- Hamao, S. & H. Eda-Fujiwara, 2004. Vocal mimicry by the Black-browed Reed Warbler: objective identification of mimetic sounds. Ibis 146: 61-68.
- Ueta, M., R. Kurosawa, S. Hamao, H. Kawachi & H. Higuchi, 2003. Population change of jungle crows in Tokyo. Global Environmental Research. 7: 131-137.
- Hamao, S., 2003. Reduction of cost of polygyny by nest predation in the Black-browed Reed Warbler. Ornithological Science 2: 113-118.
Shoji Hamao
Papers