Hagy, H.M., S.C. Yaich, D.A. Haukos, W.C. Johnson, C.R. Loesch, F. Reid, J. Simpson, S. Stephens, R.W. Tiner, B. Werner, and G. Yarris. 2014. Wetland issues affecting waterfowl conservation in North America. Wildfowl Special Issue 4:343-367.
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