Longcore, J. R. and F. B. Samson. 1973. Eggshell breakage by Incubating Black 

 Ducks fed DDE. J. Wlldl . Manage. 37: 390-394. 



McLaughlin, J. D. and M. D. B. Burt. 1973. Changes in the cestode fauna of the 

 Black Duck, Anas rubripes (Brewster). Can. J. Zool. 51: 1001-1006. 



1972 



Grandy, J. W. 1972. Digestion and passage of blue mussels eaten by Black 

 Ducks. Auk 89: 189-190. 



1971 



Berger, M. , J. S. Hart and 0. Z. Roy. 1971. Respiratory water and heat loss 

 of the Black Duck during flight at different ambient temperatures. Can. 

 J. Zool. 49: 767-774. 



Geis, A. D., R. I. Smith and J. P. Rogers. 1971. Black Duck distribution, har- 

 vest characteristics, and survival. U.S. Fish & Wildl. Serv., Spec. Sci. 

 Rept. Wildl. No. 139. xxii and 241 pp. 



Longcore, J. R. , F. B. Samson and T. W. Whittendale. 1971. DDE thins eggshells 

 and lowers reproductive success of captive Black Ducks. Bull. Environ. 

 Contam. Toxicol. 6: 485-490. 



1970 



Barclay, J. S. 1970. Ecological aspects of defensive behavior in breeding 

 Mallards and Black Ducks. Ph.D. thesis, Ohio State Univ. / Col umbus , OH. 

 176 pp. 



Bellrose, F. C. and R. D. Crompton. 1970. Migration behavior of Mallard and 

 Black ducks as determined from banding. 111. Nat. Hist. Surv. Bull. 30: 

 167-234. 



Penney, J. G. and E. D. Bailey. 1970. Comparison of the energy requirements 

 of fledgling Black Ducks and American Coots. J. Wildl. Manage. 34: 105- 

 114. 



1968 



Coulter, M. W. and W. R. Miller. 1968. Nesting biology of Black Ducks and Mal- 

 lards in northern New England. Vermont Fish Game Dept . Bull. No. 68-2. 

 74 pp. 



Martinson, R. K. , A. D. Geis and R. I. Smith. 1968. Black Duck harvest and 

 population dynamics in eastern Canada and the Atlantic flyway. Pp. 21- 

 52 ±n P. Barske (ed.) The Black Duck: evaluation, management, and research. 

 Brew Printing Co. 



Reichel, W. L. and C. E. Addy. 1968. A survey of chlorinated pesticide res- 

 idues in Black Duck eggs. Bull. Environ. Contam. Toxicol. 3: 174-179. 



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