TY  - RPRT
TI  - Waterfowl nesting on an earth-filled cement culvert
AU  - K.F. Higgins
AU  - H.W. Miller
AU  - L.M. Kirsch
PY  - 1986
UR  - https://pubs.usgs.gov/publication/1001162
ID  - 1001162
ER  -