TY  - RPRT
TI  - Winter survival of female American black ducks on the Atlantic coast
AU  - Michael J. Conroy
AU  - Gary R. Costanzo
AU  - Daniel B. Stotts
PY  - 1989
DO  - 10.2307/3801314
UR  - https://pubs.usgs.gov/publication/5222240
ID  - 5222240
ER  -