TY  - RPRT
TI  - Spring-summer survival rates of yearling versus adult mallard females
AU  - Ronald E. Reynolds
AU  - Robert J. Blohm
AU  - James D. Nichols
AU  - James E. Hines
PY  - 1995
DO  - 10.2307/3801945
UR  - https://pubs.usgs.gov/publication/5223061
ID  - 5223061
ER  -