TY - RPRT TI - Breeding-season sympatry facilitates genetic exchange among allopatric wintering populations of Northern Pintails in Japan and California AU - Paul L. Flint AU - Kiyoaki Ozaki AU - John M. Pearce AU - Brian Guzzetti AU - Hiroyoshi Higuchi AU - Joseph P. Fleskes AU - Tetsuo Shimada AU - Dirk V. Derksen PY - 2009 DO - 10.1525/cond.2009.090100 UR - https://pubs.usgs.gov/publication/70035506 ID - 70035506 ER -