TY - RPRT TI - Sediment ingestion rates in waterfowl (Anatidae) and their use in environmental risk assessment AU - W. Nelson Beyer AU - Matthew C. Perry AU - Peter C. Osenton PY - 2008 DO - 10.1897/ieam_2007-069.1 UR - https://pubs.usgs.gov/publication/5224865 ID - 5224865 ER -