TY - RPRT TI - Molecular detection of hematozoa infections in tundra swans relative to migration patterns and ecological conditions at breeding grounds AU - Andrew M. Ramey AU - Craig R. Ely AU - Joel A. Schmutz AU - John M. Pearce AU - Darryl J. Heard PY - 2012 DO - 10.1371/journal.pone.0045789 UR - https://pubs.usgs.gov/publication/70041079 ID - 70041079 ER -