TY  - RPRT
TI  - Rape among mallards
AU  - F. McKinney
AU  - J. Barrett
AU  - S.R. Derrickson
PY  - 1978
DO  - 10.1126/science.201.4352.281
UR  - https://pubs.usgs.gov/publication/5221119
ID  - 5221119
ER  -