<2026>

Kanasugi, N., Sawada, A., Nakamura, H., Sasaki, R., Hosoe, J., & Takagi, M. (2026). Ryukyu scops owl exhibits strong vocal responses to copulation calls produced by nonpartner individuals. Animal Behaviour, 240, 123682.

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Kanasugi, N., Ito, T., Otake, K., Hayama, S., Sakai, S., Endo, Y., ... & Tsubota, T. (2026). The relative abundance of crop and natural food influences crop consumption by brown bears. Wildlife Biology, e01693.

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Hanzawa, H., Saitoh, T., Sawada, A., & Takagi, M. (2026). Differences in plumage coloration between northern and southern populations of the Ryukyu Scops Owl in the Ryukyu Archipelago. Ornithological Science, OSJ-2025.

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Horiuchi, S., Kanasugi, N., Sakai, M., Nakamura, H., Nakata, T., Sawada, A., & Takagi, M. (2026). Do Ryukyu Scops Owl owlets on Minami-daito Island recognize kin relationships based on male hoots?. Ornithological Science, 25(2), 147-156.

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Hirose, T., Munakata, M., Kanasugi, N., Sawada, A., & Esashi, M. (2026). Fauna of Louse Flies (Hippoboscidae) from Scops Owls (Otus: Strigidae) of the Nansei Islands, Japan, with Information on Their Phylogenetic Positions and Population Structure. Zoological Studies, 65, e13.

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<2025>

Takagi, M., & Sawada, A. (2025). Apparent annual survival rates of male Ryukyu Scops Owls on eight islands in the Ryukyu Archipelago. Ornithological Science, 24(1), 7-13.

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Takagi, M., Iwasaki, M., Shiraiwa, S., & Furumaki, S. (2025). Interspecific and individual differences in the tongue spots of three grasshopper warbler species in Hokkaido, Japan. Ornithological Science, 24(1), 15-25.

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Iwasaki, M & Takagi, M. (2025). The First Record of Leucism
in the Middendorff's Grasshopper Warbler. J. Yamashina Inst. Ornithol, 57, 1-7

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熊谷隼, 澤田明, & 中村晴歌. (2025). 沖縄県南大東島におけるブッポウソウの亜種 Eurystomus orientalis pacificus の国内初記録. 日本鳥学会誌, 74(1), 99-103.

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<2024>

Ohsugi, Y., Sawada, A., Terao, T., Ohari, Y., Takagi, M., & Asakawa, M. (2024). Dilepididae (Cestoda: Cyclophyllidea) obtained from Ryukyu Scops Owl Otus elegans.

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Kanasugi, N., Sawada, A., Nakamura, H., Kumagai, S., Ono, H., Esashi, M., ... & Takagi, M. (2024). Do weather conditions during the brood rearing period affect the survival of owl chicks on a subtropical island?. Ornithological Science, 23(2), 65-76.

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<2023>

Aoki, D., Matsui, S., Esashi, M., Nishiumi, I., Nagata, J., & Takagi, M. (2023). Population genetics of recent natural colonization by the bull-headed shrike (Lanius bucephalus; Aves) suggests the importance of recurrent immigration on remote islands. Biological Journal of the Linnean Society, blad105.

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Sawada, A., Tatematsu, K., Kawano, T., & Takagi, M. (2023). First direct evidence of inter-island dispersal of Ryukyu Scops Owl Otus elegans. Ornithological Science, 22(2), 191-194.

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Sawada, A., Iwasaki, T., Inoue, C., Nakaoka, K., Nakanishi, T., Sawada, J., ... & Takagi, M. (2023). Estimation of condition-dependent dispersal kernel with simple Bayesian regression analysis. Ornithological Science, 22(1), 25-34.

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< 2022 >

Sakamoto, H., Aoki, D., Uemura, S., & Takagi, M. (2022).  Genetic parent-offspring relationships predict sexual differences in the contributions to parental care in the Tree Sparrow. Ornithological Science

 

Takagi, M. (2022). Replacement of rectrices by wintering White Wagtails: an experiment to examine effects of sex, age, and body condition. Journal of Field Ornithology 93(3)

 

Takagi, M. (2022). Sex and age‐class differences in feather mite loads in white wagtails Motacilla alba lugens suggest self‐regulation of feather mites by birds. Journal of Avian Biology 2022(7)

 

Nomano, F. Y., Matsui, S., Senda, M., Tsuchiya, Y., & Takagi, M. (2022). Random mating and the lack of sex-biased kin clustering in an island population of the bull-headed shrike, Lanius bucephalus. Ethology Ecology & Evolution, 1-15.

 

Murakami, R., Sawada, A., Ono, H., & Takagi, M. (2022). The effect of experience on parental role division in Ryukyu Scops Owl Otus elegans. Ornithological Science, 21(1), 35-44.

 

Sawada, Akira, Iwasaki, Tetsuya, Inoue, Chitose, Nakaoka, Kana, Nakanishi, Takumi, Sawada, Junpei, Aso, Narumi, Nagai, Shuya, Takagi, Masaoki. (2022).Estimation of condition dependent dispersal kernel with simple Bayesian regression analysis. Ornithological Science

 

屋宜 禎央, 澤田 明, 白岩 颯, 金杉尚紀. (2022). 南大東島のリュウキュウコノハズクの巣から羽化したヒロズコガ科2種. 蛾類通信 304 138-139

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< 2021 >

橋爪拓斗, 澤田 明, 白岩 颯, 金杉尚紀. (2021).南大東島でリュウキュウコノハズクの巣から得られたクロズマルコガシラハネカクシ. Pulex 100 885-886

 

Aoki, D., Iwami, Y., & Takagi, M. (2021). Formation of macro-and microrefugia explains morphological divergence of the Eurasian Jay Garrulus glandarius in the Japanese archipelago. Acta Ornithologica, 56(1), 15-28.

 

Sawada, A., Iwasaki, T., Inoue, C., Nakaoka, K., Nakanishi, T., Sawada, J., ... & Takagi, M. (2021). Missing piece of top predator-based conservation: Demographic analysis of an owl population on a remote subtropical island. Population Ecology, 63(3), 204-218.

 

Aoki, D., Sakamoto, H., Kitazawa, M., Kryukov, A. P., & Takagi, M. (2021). Migration‐tracking integrated phylogeography supports long‐distance dispersal‐driven divergence for a migratory bird species in the Japanese archipelago. Ecology and evolution, 11(11), 6066-6079.

 

Sawada, A., Akatani, K., & Takagi, M. (2021). Growth curves of Ryukyu Scops Owl nestlings, an owl species with asynchronous hatching and reversed sexual dimorphism. Ardea, 109(2), 1-13.

 

Sawada, A., Iwasaki, T., Matsuo, T., Akatani, K., & Takagi, M. (2021). Reversed sexual size dimorphism in the Ryukyu Scops Owl Otus elegans on Minami-daito Island. Ornithological Science, 20(1), 15-26.

 

< 2020 >

Sawada, A., Ando, H., & Takagi, M. (2020). Evaluating the existence and benefit of major histocompatibility complex‐based mate choice in an isolated owl population. Journal of Evolutionary Biology, 33(6), 762-772.

 

Nishida, Y., & Takagi, M. (2020). Effects of habitat use on food acquisition and food caching during a nonbreeding season in a winter-breeding, food-storing passerine. Bird Study, 67(2), 181-189.

 

Takagi, M. (2020). Vocalizations of the Ryukyu Scops Owl Otus elegans: individually recognizable and stable. Bioacoustics, 29(1), 28-44.

 

< 2019 >

Uemura, S., Hamachi, A., Nakachi, K., & Takagi, M. (2019). First tracking of post-breeding migration of the Ruddy Kingfisher Halcyon coromanda by GPS data logger. Ornithological Science, 18(2), 215-219.

 

Akatani, K., & Takagi, M. (2019). Remigial and rectricial molt sequences in a captive Ryukyu Scops-Owl (Otus elegans). The Wilson Journal of Ornithology, 131(4), 828-833.

 

植村慎吾, 仲地邦博, 浜地歩, & 高木昌興. (2019). 沖縄県池間島におけるアカノドカルガモ Anas luzonica の観察記録. 日本鳥学会誌, 68(2), 379-381.

 

Nishida, Y., & Takagi, M. (2019). Male bull-headed shrikes use food caches to improve their condition-dependent song performance and pairing success. Animal Behaviour, 152, 29-37.

 

Sawada, A., Iwasaki, T., & Takagi, M. (2019). Fine‐scale spatial genetic structure in the Minami‐daito Island population of the Ryukyu scops owl Otus elegans. Journal of Zoology, 307(3), 159-166.

 

Akatani, K., & Takagi, M. (2019) The onset of breeding behaviours in a captive male Ryukyu Scops Owl.  Journal of the Yamashina Institute for Ornithology 50(2) 125-128

 

< 2018 >

Nishida, Y., & Takagi, M. (2018). Song performance is a condition‐dependent dynamic trait honestly indicating the quality of paternal care in the bull‐headed shrike. Journal of Avian Biology, 49(10), e01794.

 

Sawada, J., & Takagi, M. (2018). Nest and roost characteristics of the Ruddy-breasted Crake Porzana fusca on Minami-daito Island. Ornithological science, 17(1), 109-112.

 

Sawada, A., Yamasaki, T., Iwami, Y., & Takagi, M. (2018). Distinctive features of the skull of the Ryukyu Scops Owl from Minami-daito Island, revealed by computed tomography scanning. Ornithological science, 17(1), 45-54.

 

< 2017 >

Matsui, S., & Takagi, M. (2017). Habitat selection by the Bull-headed Shrike Lanius bucephalus on the Daito Islands at the southwestern limit of its breeding range. Ornithological Science, 16(1), 79-86.

 

浜地歩, 植村慎吾, 仲地邦博, & 高木昌興. (2017). 宮古諸島におけるカッコウ科鳥類 2 種の観察記録. Bird Research, 13, S27-S33.