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Baldassarre, G. A., and D. H. Fischer. 1984. Food habits of fall migrant 
     shorebirds on the Texas USA high plains. J. Field Ornithol. 55:220-229.

Bell, J. F., G. W. Sciple, and A. A. Hubert. 1955. A microenvironment concept 
     of the epizootiology of avian botulism. J. Wildl. Manage. 19:352-357.

Boates, J. S., and P. C. Smith. 1989. Crawling behavior of the amphipod Corophium 
     volutator and foraging by semipalmated sandpipers Calidris pusilla. Can. J. 
     Zool. 67:457-462.

Duncan, R. M., and W. I. Jensen. 1976. A relationship between avian carcasses 
     and living invertebrates in the epizootiology of avian botulism. J. Wildl. 
     Dis. 12:116-126.

Drobney, R. D., and L. H. Fredrickson. 1979. Food selection by wood ducks in 
     relation to breeding status. J. Wildl. Manage. 43:109-120.

Euliss, N. H., Jr., and S. W. Harris. 1987. Feeding ecology of northern pintail 
     and green-wing teal wintering in California. J. Wildl. Manage. 51:724-732.

_____, and G. A. Swanson. 1989. Improved self-cleaning screen for processing 
     benthic samples. Calif. Fish and Game 75:124-128.
	
_____, _____, and J. Mackay. 1992. Multiple tube sampler for benthic and pelagic 
     invertebrates in shallow wetlands. J. Wildl. Manage. 56:186-191.
	
Grue, C. E., M. W. Tome, T. A. Messmer, D. B. Henry, G. A. Swanson, and L. R. 
     DeWeese. 1989. Agricultural chemicals and prairie pothole wetlands: meeting 
     the needs of the resource and the farmer - U. S. perspective. Trans. N. Am. 
     Wild. Nat. Resour. Conf. 54:43-58.

Hicklin, P. W., and P. C. Smith. 1979. The diets of 5 species of migrant 
     shorebirds in the Bay of Fundy, Nova Scotia, Canada. Proc. Nova Scotia Inst. 
     Sci. 29:483-488.

Jensen, W. I., and J. P. Allen. 1960. A possible relationship between aquatic 
     invertebrates and avian botulism. Trans. N. Am. Wildl. Nat. Resour. Conf. 
     25:171-181.

Swanson, G. A., G. L. Krapu, and J. R. Serie. 1979. Foods of laying female 
     dabbling ducks on the breeding grounds. Pages 47-57 in T.A. Bookhout, ed. 
     Waterfowl and wetlands--an integrated review. Proc. Symp. North Cent. Sect., 
     The Wildl. Soc.