TY - RPRT TI - Trace elements in lesser scaup (Aythya affinis) from the Mississippi flyway AU - Christine M. Custer AU - T. W. Custer AU - M.J. Anteau AU - A. D. Afton AU - D.E. Wooten PY - 2003 UR - https://pubs.usgs.gov/publication/1002983 ID - 1002983 ER -