About the Authors

Michael J. Anteau

manteau@usgs.gov

Current address: Northern Prairie Wildlife Research Center, U.S. Geological Survey, Jamestown, North Dakota, United States of America

Affiliation School of Renewable Natural Resources, Louisiana State University, Baton Rouge, Louisiana, United States of America

Alan D. Afton

Affiliation Louisiana Cooperative Fish and Wildlife Research Unit, U.S. Geological Survey, Louisiana State University, Baton Rouge, Louisiana, United States of America

Competing Interests

Ducks Unlimited Inc. USA is a A 501C3 non-profit that provided in-kind support - assisting with collection of some aspects of field data. Federal and Winchester Cartridge Companies are commercial sources of funding (provided cartridges for collection of specimens), each provided in-kind support of the study. None of the funders have any claim to the data, nor connections relating to employment, consultancy, products in development, or marketed products. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MJA ADA. Performed the experiments: MJA ADA. Analyzed the data: MJA. Contributed reagents/materials/analysis tools: MJA. Wrote the paper: MJA ADA.