TY  - RPRT
TI  - Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota
AU  - R.E. Kirby
AU  - L.M. Cowardin
AU  - J.R. Tester
PY  - 1989
UR  - https://pubs.usgs.gov/publication/81367
ID  - 81367
ER  -