TY  - RPRT
TI  - Unusual geese in the Pacific Coast states
AU  - S.R. Wilbur
AU  - C.F. Yocom
PY  - 1971
DO  - 10.2307/3534521
UR  - https://pubs.usgs.gov/publication/5220018
ID  - 5220018
ER  -