Young, C. M. 1968. Island nesting of ducks in northern Ontario. Can. Field- 

 Nat. 82: 209-212. 



1967 



Johnsgard, P. A. 1967. Sympatry changes and hybridization incidence in Mal- 

 lards and Black Ducks. Am. Midi. Nat. 77: 51-63. 



Young, C. M. 1967. Overland migration of duck broods in a drought-free area. 

 Can. J. Zool. 45: 249-251. 



1966 



Kaestner, P. 1966. Red-necked Grebe and albino Black Duck at Loch Raven. 

 Md. Birdlife 22: 107. 



1965 



Bandy, L. W. 1965. Colonization of artificial nesting structures by wild Mal- 

 lard and Black Ducks. M.S. thesis, Ohio State Univ. /Columbus , OH. 67 pp. 



Parnell, J. F. and T. L. Quay. 1965. The populations, breeding biology, and 

 environmental relations of the Black Duck, Gadwall, and Blue-winged Teal 

 at Pea and Bodie islands, North Carolina. Proc. 16th Annu. Conf. South- 

 eastern Assoc. Game & Fish Commiss.: 53-67. 



1964 



Leitch, W. G. 1964. Black Duck breeding record for Alberta. Can. Field-Nat. 

 78: 199. 



Reed, A. F. 1964. A nesting study of the Black Duck, Anas rubripes , at Ile- 

 aux-Pommes , Quebec. M.S. thesis, Laval Univ. /Quebec , PQ. 



1963 



Hartman, F. E. 1963. Estuarine wintering habitat for Black Ducks. J. Wildl. 

 Manage. 27: 339-347. 



1962 



Florschutz, 0., Jr. 1962. The Black Duck in North Carolina. Wildl. N.C. 26: 

 14-15. 



1961 



Cadbury, C. J. 1961. Black Duck in Co. Wexford. Brit. Birds 54: 324-325. 



Johnsgard, P. A. 1961. Wintering distribution changes in Mallards and Black 

 Ducks. Am. Midi. Nat. 66: 477-484. 



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