TY  - RPRT
TI  - Protecting duck nests from mammalian predators with fences, traps, and a toxicant
AU  - R. J. Greenwood
AU  - P.M. Arnold
AU  - B.G. McGuire
PY  - 1990
UR  - https://pubs.usgs.gov/publication/1001485
ID  - 1001485
ER  -