TY  - RPRT
TI  - American Black Duck ( Anas rubripes )
AU  - J. R. Longcore
AU  - D.G. McAuley
AU  - Gary R. Hepp
AU  - J.M. Rhymer
PY  - 2000
DO  - 10.2173/bna.481
UR  - https://pubs.usgs.gov/publication/5230264
ID  - 5230264
ER  -