TY  - RPRT
TI  - Sources of variation in survival and recovery rates of American black ducks
AU  - David G. Krementz
AU  - Michael J. Conroy
AU  - James E. Hines
AU  - H. Franklin Percival
PY  - 1987
DO  - 10.2307/3801729
UR  - https://pubs.usgs.gov/publication/5221534
ID  - 5221534
ER  -