Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ONO Takeshi and NISHIDA Tomiko and TOIDA Shin-ichi and SUGURO Naoyuki,Observation records of Commom Cormorant at Sakawa River,BINOS,1345-1227,Wild Bird Society of Japan Kanagawa Branch,2013,20,0,21-28,https://cir.nii.ac.jp/crid/1390282680732413440,https://doi.org/10.14929/binos.20.21