TY  - RPRT
TI  - Evaluation of survey methods for colonial waterbirds at Chase Lake National Wildlife Refuge, North Dakota
AU  - Lawrence D. Igl
AU  - Alisa J. Bartos
AU  - Robert O. Woodward
AU  - Paulette Scherr
AU  - Marsha A. Sovada
PY  - 2020
DO  - 10.3133/ofr20201008
UR  - https://pubs.usgs.gov/publication/ofr20201008
ID  - ofr20201008
ER  -