TY  - RPRT
TI  - Food habits of mute swans in the Chesapeake Bay
AU  - Matthew C. Perry
AU  - P.C. Osenton
AU  - E.J.R. Lohnes
PY  - 2004
UR  - https://pubs.usgs.gov/publication/5211269
ID  - 5211269
ER  -