Contributions of the Conservation Reserve Program to Populations of Breeding Birds in North Dakota
Acknowledgments
We appreciate the cooperation of the numerous land owners and operators who allowed us access to their property, to the state Agricultural Stabilization and Conservation Service (ASCS) directors, and to the executive directors and staffs of county ASCS offices who kindly provided us with information on CRP fields. J. R. Sauer of the National Biological Service and B. G. Peterjohn of the U.S. Fish and Wildlife Service supplied information from the Breeding Bird Survey. We thank C. J. Johnson, R. L. Manson, M. D. Schwartz, C. M. Shoemaker, and K. A. Ward for their assistance in the field. J. A. Grzybowski, H. A. Kantrud, R. R. Koford, D. L. Larson, and J. L. Zimmerman provided constructive comments on the manuscript.
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