Yushi OsawaKeiko Osawa
Yushi OsawaContact us 
We drove across Australia from June 2006 to June 2007 with a travel trailer,
watched Australian wildlife and took pictures of them. After returning
to Japan, we have continued to travel to see fruit bats around the world.
Executive members of the Bat Study and Conservation Group of Japan
Brief summary of our performance
| Magazines and Newspapers | Article titles | ||
| Apr. 1992 | "Recycle culture" Vol.34 | Recycle project in Albany, NY, USA | Yushi Osawa, Keiko Osawa |
| Dec. 1999 | "Birder" (Bunich-sogo-shuppan) December 1999 | Birdwatching in Acadia National Park, USA | |
| May. 2000 | "Birder" (Bunich-sogo-shuppan) May 2000 | American Samoa, a southern hemisphere US territory | |
| Aug. 7, 2001 | "Biodiversity in Tokyo"The 56th Japan Association of Biology Education Conference in Tokyo commemoration booklet by Biology teacher's association of Tokyo | Bat fauna in Tokyo | Keiko Osawa |
| Feb. 2002 | "Birder" (Bunich-sogo-shuppan) February 2002 | Bird watching in the Republic of the Seychells 1 | |
| Mar. 2002 | "Birder" (Bunich-sogo-shuppan) March 2002 | Bird watching in the Republic of the Seychells 2 | |
| Oct. 29, 2003 | Yomiuri Sinbun evening edition | Bonin Flying Fox, on the brink of extinction | Yushi Osawa |
| Nov. 5, 2003 | Yomiuri Sinbun evening edition | Ryukyu Flying Fox in Kuchierabu Island and the Tokara Islands, on the brink of extinction | Yushi Osawa |
| Jul. 2004 | "Everything about bat" by Kashiwazaki City Museum | Our bat collection: From God to Devil | |
| Jan. 2007 | "Green Power" by Forest Culuture Association From January issue 2007 to December issue 2007 | Travel trailer trip looking at Australian nature | |
| Jan. 2007 | "AutoCamper" Yaeshu-shuppann Every odd number issue from January 2007 to July 2008 | Travel trailer trip across Australian continent | |
| May. 2009 | Nikkei Science May issue 2009 | "Taking wing" Scientific American by Dr. Nancy Simmons (translation and comment) | |
| Oct. 2009 | "Tyagurin" Ienohikari Association October issue 2009 | Wild world " Fruit bats" | |
| Jul. 2010 | "Birder" (Bunich-sogo-shuppan) July issue 2010 | Bird watching on Australian territory of Christmas Island 1st Part | |
| Aug. 2010 | "Birder" (Bunich-sogo-shuppan) August issue 2010 | Bird watching on Australian territory of Christmas Island 2nd Part | |
| Mar. 2011 | The Bat Study and Conservation Group of Japan Newsletter Vol.18 No.1 | Ryukyu flying foxes watching on Batan Island, Philippines | Keiko Osawa Yushi Osawa |
| Dec. 2012 | The Bat Study and Conservation Group of Japan Newsletter Vol.19 No.1 | Bat Camp in the Philippines | Keiko Osawa Yushi Osawa |
| Jun. 2014 | The Bat Study and Conservation Group of Japan Newsletter Vol.21 No.1 | Pipistrellus abramus and Vespertilio sinensis hunting Stenopsyche marmorata | Keiko Osawa yushi Osawa |
| Jun. 2014 | The Bat Study and Conservation Group of Japan Newsletter Vol.21 No.1 | Our Bat Watching Trip across the US | Keiko Osawa Yushi Osawa |
| Sep. 1, 2014 | TOKYO BIRDERS Newsletter YURIKAMOME No.707 | Bats flying over Tokyo | Keiko Osawa Yushi Osawa |
| Sep. 30, 2014 | Urban-bird Society of Japan Newsletter URBAN BIRDS No.17 | Urban-dwelling bats | Keiko Osawa Yushi Osawa |
| Dec. 5, 2014 | Socity of Science Photography's Quarterly Journal | Bat Photography | Yushi Osawa |
| Jan. 18, 2015 | Shincho 45 January 2015 issue | Serial interview with experts"Citizenship for bats!" | |
| Mar. 1, 2015 | WWF-Japan Newsletter March-April 2015 issue | Visiting bats across the world | Yushi Osawa Keiko Osawa |
| Aug. 7, 14, 21, & 28, 2015 | Japanese Communist Party's New Papaer AKAHATA Friday series | What bats have to say | Yushi Osawa Keiko Osawa |
| Scientific Papers, Academic presentation | |||
| 1990 | Journal of the Yamashina Instritute for Ornithology Volume22(2) | A bird list on Minami-daito Island | Keiko Osawa and Yushi Osawa |
| Oct. 3, 1999 | Symposium "Action plan for bat conservation in Japan"at the Mammalogical Society of Japan Conference | Oran presentation "Japanese fruit bat conservation" | |
| 2006 | Mammalian Science,Volume46(1) Short Report | The distribution of Ryukyu Flying Foxes Pteropus dasymallus inopinatus near Okinawa Island. : Recent observation of the species on Yoron Island | Yoshitake Funakoshi, Yushi Osawa and Keiko Osawa |
| Apr. 19-21, 2006 | 12th Australasian Bat Society Conference 2006 | Poster presentation "Flying foxes in Japan" | Keiko Osawa and Yushi Osawa |
| Sep. 18-20, 2010 | Mammalogical Society of Japan Conference | Poster presentation "Status of Ryukyu Flying Foxes (Pteropus dasymallus) in Batan Island, Philippines" | Yushi Osawa and Keiko Osawa |
| Jun. 6-9, 2010 | 2nd Southeastasian Bat Conference | Poster presentation "Court color variation of Ryukyu Flying Foxes Pteropus dasymallus in many different locations" | Keiko Osawa and Yushi Osawa |
| Mar. 30, 2012 | Bulletin of the Saitama Museum of Natural History 6 | Short Note New Wintering Spots of Vespertilio sinensis in Saitama, Japan | Yushi Osawa, Katsuhiko Ishii, Keiko Osawa, Mihoko Okumura, Tohru Usui and Akiyoshi Sato |
| 2012 | Bull. Gumma Mus. Natu. Hist. (16) 131-144, 2012 | Bats in Minakami, Gumma Prefecture | Naoko Sasaki, Akiko Mikasa, Dai Fukui, Satoko Yoshikura, Masahiko Mizuno, Hideo Imai, Keiko Osawa, Yushi Osawa, Akihiko Sato, Satomi Nobuchi, Nobuhiko Honda, Ko Mineshita, Taku Fujita, and Seiichi Dewa |
| Sep. 20-23, 2012 | Mammalogical Society of Japan Conference | Poster presentation "Three species of bats roosting in crevices of Shinkansen railway in Saitama" | Keiko Osawa, Akiyoshi Sato, Yushi Osawa, Setsuko Katsuta |
| Sep. 20-23, 2012 | Mammalogical Society of Japan Conference | Poster presentation "A newly discovered maternity colony and the winter population of Asian parti-coloured bat in Fujioka City, Gunma Prefecture" | Tatsuya Kasahi, Yushi Osawa, Keiko Osawa, Koo Mineshita, Takayori Shimizu,and Mitsuru Mukohyama |
| Nov. 2012 | Saitama Konchu Danwakai Newsletter Yosegaki 147:76-77 | First record of Cimex japonicus in Saitama | Akiyoshi Sato, Setsuko Katsuta, Keiko Osawa, and Yushi Osawa |
| Dec. 2012 | Mammalian Science,Volume52(2):179-184 Short Report | First record of the Orii’s flying-fox, Pteropus dasymallus inopinatus on Okinoerabu-jima Island in Kagoshima Prefecture, Japan, with special reference to their inhabitation | Kimitake Funakoshi, Yushi Osawa, and Keiko Osawa |
| Mar. 2013 | Buletin of Saitama River Museum(13):1-12 | Activities of Vespertilio sinensis at Saitama River Museum from autumn to spring | Keiko Osawa, Akiyoshi Sato, Yushi Osawa, Setsuko Katsuta, and Katsuhiko Ishii |
| Mar. 25, 2013 | Bulletin of the Saitama Museum of Natural History 7:95-100 | Seasonal population dynamics of Vespertilio sinensis at Kojima, Kumagaya, Saitama, Japan | Keiko Osawa, Akiyoshi Sato, Yushi Osawa, and Setsuko Katsuta |
| Mar. 25, 2013 | Bulletin of the Saitama Museum of Natural History 7:101-108 | Winter ecology of the birdlike nocture (Nyctalus aviator) in Saitama Prefecture | Akiyoshi Sato Yushi Osawa Keiko Osawa and Setsuko Katsuta |
| Mar. 3013 | Bull. Gumma Mus. Natu. Hist. (17) 131-146, 2013 | A newly discovered maternity colony and the winter population of the Asian Parti-colored bat Vespertilio sinensis in the elevated railways of the Joetsu-Shinkansenin Gunma Prefecture | Tetsuya Kasahi, Yushi Osawa, Keiko Osawa, Koo Mineshita, Takayori Shimizu, and Mitsuru Mukohyama |
| May 26, 2013 | Fauna Ryukyuana 4:1-3 | Distribution of the Yaeyama flying-fox Pteropus dasymallus yayeyamae Kuroda,1933 (Chiroptera: Pteropodidae) on the Miyako Islands | Keiko Osawa & Yushi Osawa |
| May 26, 2013 | Fauna Ryukyuana 4:5-7 | A new record of the Ryukyu flying-fox Pteropus dasymallus Temminck, 1825 (Chiroptera: Pteropodidae) from Aguni-jima Island | Keiko Osawa, Kenji Takehara, Masakuni Yamashiro, Masayoshi Shikata & Yushi Osawa |
| May 26, 2013 | Fauna Ryukyuana 4:9-11 | A new record of the Ryukyu flying-fox Pteropus dasymallus Temminck, 1825 (Chiroptera: Pteropodidae) from Kume-jima Island | Keiko Osawa & Yushi Osawa |
| Sep. 6-9, 2013 | The joint meeting of the 29th Japan Primate Society annual meeting and Mammalogical Society of Japan 2013 | Daytime Activities of Nyctalus aviator | Keiko Osawa, Akiyoshi Sato, Yushi Osawa, and Setsuko Katsuta |
| Mar. 20, 2014 | Bulletin of the Saitama Museum of Natural History 8:45-48 | Food Habits of the birdlike noctule (Nyctalus aviator) in Saitama Prefecture. The analysis of feces collected at Kojima, Kumagaya in 2012 | Setsuko Katsuta, Akiyoshi Sato, Yushi Osawa, and Keiko Osawa |
| Mar. 20, 2014 | Bulletin of the Saitama Museum of Natural History 8:49-52 | Hibernation and maternal colonies of Vesperilio sinensis in the cracks of the raised Shinkansen railway in Saitama, Japan | Keiko Osawa, Akiyoshi Sato, Setsuko Katsuta, and Yushi Osawa |
| Jul. 31, 2014 | Saitama Konchu Danwakai Newsletter Yosegaki 154:50-52 | Second record of Cimex japonicus in Saitama on a birdlike noctule | Akiyoshi Sato, Setsuko Katsuta, Keiko Osawa, Yushi Osawa, and Kazuhiko Machida |
| Sep. 4-7, 2014 | Mammalogical Society of Japan Conference | Poster presentation"First recorded breeding of the Birdlike Noctule Nyctalus aviator in spaces between concrete sections of the Joetsu Shinkansen railway in Kumagaya, Saitama" | Keiko Osawa, Akiyoshi Sato, Setsuko Katsuta, and Yushi Osawa |
| May 2015 | Bulletin of the Saitama Museum of Natural History 9:35-40 | Hibernating and maternal colonies of Pipistrellus abramus in the crevices of the raised Shinkansen railway in Saitama, Japan | Keiko Osawa, Akiyoshi Sato, Setsuko Katsuta, and Yushi Osawa |
| Jul. 26-30, 2015 | Vth International Wildlife Management Congress | Daytime Activities of Birdlike Noctule in Saitama | Keiko Osawa, Akiyoshi Sato, Yushi Osawa, and Setsuko Katsuta |
| Jan. 2016 | Saitama Dobutsuken Newsletter 83 (2016) January issue | Two species of bats confirmed in the tunnels near Urayama Dam | Yushi Osawa, Keiko Osawa, Akiyoshi Sato, and Setsuko Katsuta |
| Mar. 2016 | Bulletin of the Saitama Museum of Natural History 10:69-74 | Winter ecology of the birdlike noctule (Nyctalus aviator) in Saitama Prefecture 2. The seasonal fluctuations of the numbers and aggregation and dispersal in a wintering place. | Akiyoshi Sato, Yushi Osawa, Keiko Osawa, and Setsuko Katsuta |
| Mar. 31, 2016 | Saitama Konchu Danwakai Newsletter Yosegaki 161:9-12 | First record of Ischnopsyllus needhami in Saitama Prefecture | Setsuko Katsuta, Akiyoshi Sato, Yushi Osawa, Keiko Osawa, and Masahiko Ohno |
| May 2016 | Nature of Kagoshima Vol.42:5-11 | The Oriental free-tailed bat Tadarida insignis population found in the crevices of raised Shinkansen railway in Kagoshima Prefecture | Kimitake Funakoshi, Akiyoshi Sato, Yushi Osawa, Keiko Osawa, and Ayaka Saeki |
| Jul. 31-Aug. 5, 2016 | 17th International Bat Research Conference | Poster presentation "Four species of bats which roost in the crevices of raised Shinkansen railway in Japan" | Keiko Osawa, Akiyoshi Sato, and Yushi Osawa |
| Sep.23-26, 2016 | Mammalogical Society of Japan Conference | Poster presentation"Four species of bats which roost in the crevices of raised Shinkansen railway in Japan" | Keiko Osawa, Akiyoshi Sato, and Yushi Osawa |
| Dec. 20, 2016 | Urban pest management6(2):91-95 | Biology and behavior of bats in houses and buildings; how to live with them | Keiko Osawa and Yushi Osawa |
| Mar. 24, 2017 | Bulletin of the Saitama Museum of Natural History 11:47-54 | Confirmation of feeding and weather conditions for daytime flight of the birdlike noctule(Nyctalus aviator) | Keiko Osawa, Akiyoshi Sato, Setsuko Katsuta, and Yushi Osawa |
| Oct. 2017 | Bulletin of the Kashiwazaki City Museum 31 113-116 | Hibernating bat colonies in the crevices of raised Hokuriku Shinkansen Railway | Keiko Osawa and Yushi Osawa |
| Bat talks, Bat walks | |||
| Aug. 1, 1998 | Tokyo Zoo Net (Ueno Zoo) | Bat and brown cicada emergence and metamorphosis watching, Bat talk | Keiko Osawa |
| Oct. 14, 2000 | Center for environmental science in Saitama | Bat walk at the garden "Let' listen to the bat call" | Yushi Osawa |
| Aug. 3, 2003 | Tokyo Zoo Net (Ueno Zoo) | Bat biology talk series "Fruit bat watching" | Keiko Osawa |
| Aug. 1, 2004 | Kashiwazaki City Museum (Niigata) | Bat talk(Part of bat festival) "Bats are the closest wildlife" | Yushi Osawa |
| Aug. 18, 2007 | Saitama Nature Study Center | Australia trip(Talk) | Yushi Osawa |
| Apr. 6, 2008 | Tama-rokuto Science Center (Tokyo) | Bat talk: Bat, our neighborhood resident | Yushi Osawa |
| May 6, 2008 | Tama-rokuto Science Center (Tokyo) | Bat talk and bat watching | |
| Nov. 1-3, 2008 | Saitama NACS-J (Nature conservation society of Japan) | Sainokuni Naturalist Workshop and 424th nature watching leader workshop Instructor | Yushi Osawa |
| May 6, 2009 | Tama-rokuto Science Center (Tokyo) | Bat talk and bat watching | |
| Sep. 22-23, 2009 | Tama-rokuto Science Center (Tokyo) | Short bat talk（30th ssp exhibition related event） | Yushi Osawa |
| Oct. 10, 2009 | Mizumoto Kawasemi-no-sato （Tokyo） | Bat talk and bat watching | |
| May 4, 2010 | Tama-rokuto Science Center (Tokyo)） | Bat talk and bat watching | |
| Jun. 20, 2010 | Kuchinoerabu Island guide association （Kagoshima） | Ryukyu flying foxes and bats around the world | |
| Aug. 22, 2010 | Urayasu sizenn marugoto tankentai | Bat watching | |
| Sep. 25, 2010 | so-mo net （Hanno City, Saitama） | Let' listen to bat calls | |
| Sep. 26, 2010 | Yatsu-higata Nature Observation Center （Chiba） | Bat walk | |
| Oct. 2, 2010 | Mizumoto Kawasemi-no-sato （Tokyo） | Bat talk and bat watching | |
| Nov. 12-14, 2010 | Saitama NACS-J (Nature conservation society of Japan) | Sainokuni Naturalist Workshop and 447th nature watching leader workshop Instructor | Yushi Osawa |
| Apr. 29, 2011 | Bat talk Tokyo Zoo Net (Ueno Zoo) | Fruit bat trip around the world | Keiko Osawa |
| Photo exhibitions, bat themed exhibitions and filming | |||
|---|---|---|---|
| Jul.2-Sep.28, 2003 | Ueno Zoo hall | Bat festival exhibition: planning, making, preparation and set-up | |
| 2007 | NHK | Coordination to NHK filiming "Shizento asobo Pipistrelle Bat" | |
| Jul. 21-Aug. 31, 2007 | Norikura nature conservation center (Nagano) | Bat festival exhibition, plannning, making, preparation and set-up | |
| Aug. 17-26, 2007 | Saitama Nature Study Center | Photo exhibition of Australian wildlife trip | |
| Jan. 22-Feb. 3, 2008 | Second Omiya Park Gallery | Photo exhibition of Australian wildlife trip | |
| Mar. 22-May 11, 2008 | Tama-rokuto Science Center (Tokyo) | Spring special exhibition "Bats our neighborhood resident" | |
| July 24-30, 2008 | Olympus Gallery （Tokyo） | Photo exhibition "Australia wildlife trip" | |
| Aug. 2-Sep. 30, 2008 | Bat festival in Okinawa Kids Discovery Foundation Zoo | Bat festival exhibition: Planning, making, preparation and set-up | |
| Apr. 28-Jul. 31, 2009 | Saitama River Museum Mini exhibition at a slope | Mini Exhibition: Secret world of bats Planning and set-up | |
| May 4-Nov. 4, 2009 | Aquamarine Fukushima | Special exhibition "Ryukyu arc: trip to the islands on the black current 7th Fruit bats on southern islands" Supervisor and Photo credit | |
| Jul. 1-Aug. 31, 2009 | Amihari visitor center （Iwate） | Bat festival exhibition "The secret world of bats:flying mammals": planning, making. preparation and set-up | |
| 2010 | NHK | Collaborator of NHK program "Darwin-ga-kita Australian hot summer ordials of giant bats" | |
| Jul. 24-Aug. 31, 2010 | Gassan visitor center （Yamagata） | Spring special exhibition: Secret world of the only flying mammal:bats:" Planning and set-up | |
| Sep. 7-Oct. 31, 2010 | Natural History Museum and Institute, Chiba | Eco-garden topical exhibition "Bats in town"Planning and photo credit | |
| Mar. 19-May 8, 2011 | Saitama River Museue Spring special exhibition | Spend your spring holidays with bats | |
| Books | |||
| Nov. 20, 1995 | Fruit bats islands | Yama-to-keikoku-sha | Yushi Osawa + Keiko Osawa |
| Jul. 23, 1997 | Nature guide of Minami-daito Island | Border Inc | Yushi Osawa and Keiko Osawa |
| Apr. 1, 1999 | Our wildlife watching on Rota Island | Yama-to-keikoku-sha | Keiko Osawa and Yushi Osawa |
| Feb. 21, 2002 | Bat Watching Book | Jinrui-bunka-sha Coauthors | Satoshi Kumagai, Akiko Mikasa, Yushi Osawa and Keiko Osawa |
| Jul. 24, 2012 | Bat watching in our vicinity | Seibundo-shinko-sha | Yushi Osawa Keiko Osawa |
| Apr. 21, 2014 | The mysterious bat life : Why do they fly? | Seibundo-shinko-sha | Osawa Keiko Yushi Osawa |
| Nov. 30, 1999 | World culuture guide "Micronesia" | Travel Journal （Write some parts, Some photos credit) | |
| Aug. 1, 2005 | Bat Biology and behavior | Yasaka-shobou （Cotranslators) | |
| Aug. 1, 2005 | A Field Guide to the Bats of Japan | Bunich-sogo-shuppan (Co-authors, Some photograph credit, English translation and editor) | |
| Jul. 25, 2007 | Bats in question | Gijutu-hyoron-sha (Co-authors and some photograph credit) | |
| May 22, 2011 | A field guide to the bats of Japan Revised edition | Bunich-sogo-shuppan (Co-authors) | |
