TY  - RPRT
TI  - California's Central Valley wintering waterfowl: Concerns and challenges
AU  - David S. Gilmer
AU  - Michael R. Miller
AU  - Richard D. Bauer
AU  - John R. LeDonne
PY  - 1982
UR  - https://pubs.usgs.gov/publication/70230870
ID  - 70230870
ER  -