TY  - RPRT
TI  - Teaching migration routes to canada geese and trumpeter swans using ultralight aircraft, 1990-2001
AU  - William J.L. Sladen
AU  - William A. Lishman
AU  - D. H. Ellis
AU  - G.G. Shire
AU  - D.L. Rininger
PY  - 2002
UR  - https://pubs.usgs.gov/publication/5211213
ID  - 5211213
ER  -