TY  - RPRT
TI  - Comparative productivity of American black ducks and mallards nesting on Chesapeake Bay Islands
AU  - D.G. Krementz
AU  - Daniel B. Stotts
AU  - G.W. Pendleton
AU  - J.E. Hines
AU  - Vernon D. Stotts
PY  - 1992
DO  - 10.1139/z92-035
UR  - https://pubs.usgs.gov/publication/5222946
ID  - 5222946
ER  -