TY  - RPRT
TI  - Some nutritional aspects of reproduction in prairie nesting pintails
AU  - Gary L. Krapu
AU  - G.A. Swanson
PY  - 1975
DO  - 10.2307/3800479
UR  - https://pubs.usgs.gov/publication/1001289
ID  - 1001289
ER  -