TY  - RPRT
TI  - Effect of hunting on annual survival of grey ducks in New Zealand
AU  - Richard J. Barker
AU  - James E. Hines
AU  - James D. Nichols
PY  - 1991
DO  - 10.2307/3809148
UR  - https://pubs.usgs.gov/publication/5222572
ID  - 5222572
ER  -