Acknowledgements
This research was funded by the National Fish and Wildlife Foundation
(grant #1201.19.066604), the U.S. Fish and Wildlife Service Cooperative
Agreement Award (F16AC01242), the Prairie Pothole Joint Venture, and the
World Wildlife Fund. We are grateful to all those who aided in data
collection and reviewing of the manuscript. We are also appreciative of
the private landowners who allowed access to their land for data
collection.