TY  - RPRT
TI  - Recent sightings and a specimen record of the Trumpeter Swan in the Willamette Valley, Oregon
AU  - Lawrence J. Blus
AU  - Charles J. Henny
AU  - M.S. Eltzroth
PY  - 1987
DO  - 10.2307/3535694
UR  - https://pubs.usgs.gov/publication/5221540
ID  - 5221540
ER  -