TY  - RPRT
TI  - Effects of water conditions on clutch size, egg volume, and hatchling mass of mallards and gadwalls in the Prairie Pothole Region
AU  - P.J. Pietz
AU  - Gary L. Krapu
AU  - D. A. Buhl
AU  - D.A. Brandt
PY  - 2000
DO  - 10.1093/condor/102.4.936
UR  - https://pubs.usgs.gov/publication/70023185
ID  - 70023185
ER  -