Spring Migration of Brent Geese Wintering in Japan Extends into Russian High Arctic
Shimada, Tetsuo and Hijikata, Naoya and Tokita, Ken-ichi and Uchida, Kiyoshi and Kurechi, Masayuki and Suginome, Hitoshi and Higuchi, Hiroyoshi, Ornithological Science, 16, 159-162 (2017), DOI:http://dx.doi.org/10.2326/osj.16.159