TY  - RPRT
TI  - Survival and band recovery rates of sympatric grey ducks and mallards in New Zealand
AU  - Tom Caithness
AU  - Murray Williams
AU  - James D. Nichols
PY  - 1991
DO  - 10.2307/3809247
UR  - https://pubs.usgs.gov/publication/5222868
ID  - 5222868
ER  -