TY - RPRT TI - Migration of whooper swans and outbreaks of highly pathogenic avian influenza H5N1 virus in Eastern Asia AU - Scott H. Newman AU - Samuel A. Iverson AU - John Y. Takekawa AU - Martin Gilbert AU - Diann J. Prosser AU - Nyambyar Batbayar AU - Tseveenmyadag Natsagdorj AU - David C. Douglas PY - 2009 DO - 10.1371/journal.pone.0005729 UR - https://pubs.usgs.gov/publication/70003876 ID - 70003876 ER -