Northern Prairie Wildlife Research Center
This study relied to a major extent on data collected by a host of summer technicians who are named elsewhere (Lokemoen et al. 1990). We appreciate the work and advice provided during this study by Harold F. Duebbert. We thank Pamela J. Pietz, who provided detailed editorial comments on the manuscript, and Jane E. Austin, who provided beneficial insights on earlier drafts. We also thank Michael D. Schwartz, who drafted the figures.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/duckwght/acknow.htm
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Menlo Park, CA [caww54]
