Rieck, C. A. 1966. Mallard introductions and ecological changes from fertili- 

 zation on a beaver pond. Murrelet 47: 66-72. 



Rogers, J. P. 1966. Mallard predation by a Goshawk. Wilson Bull. 78: 317-318. 



Wheeler, R. J. 1966. An unusually long incubation period of the Mallard. Con- 

 dor 68: 301. 



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. 



Beck, W. H. 1965. Association of a Pintail drake and a Mallard pair. Blue 

 Jay 23: 121. 



Boyd, H. and E. Fabricius. 1965. Observations on the influence of following 



of visual and auditory stimuli in naive Mallard ducklings ( Anas platyrhyn- 

 chos ) . Behaviour 25: 1-15. 



Forsythe, B. 1965. December food habits of the Mallard ( Anas platyrhynchos 



Linn.) in the Grand Prairie of Arkansas. Proc. Ark. Acad. Sci . 19: 74-78. 



Gollop, J. B. 1965. Dispersal and annual survival of the Mallard, Anas platy - 

 rhynchos . Ph.D. thesis, Univ. Saskatchewan/ Saskatoon, SK. 



Rear, J. 1965. The internal food reserves of hatching Mallard ducklings. J. 

 Wildl. Manage. 29: 523-528. 



Malone, C. R. 1965. Dispersal of plankton: rate of food pairage in Mallard 

 Ducks. J. Wildl. Manage. 29: 529-533. 



1964 



Campbell, B. 1964. Mallards killing and eating house sparrows. Brit. Birds 

 57: 133-134. 



de Vos, A. 1964. Activities of a Mallard ( Anas platyrhynchos ) brood after 

 hatching. Auk 81: 442. 



Etienne, A. 1964. Der Einfluss von Testosteron auf Verhalten junger Stocken- 

 ten ( Anas platyrhynchos L.). Z. Tierpsychol. 21: 822-836. [In German.] 



Etienne, A. and H. Fischer. 1964. Untersuchungen uber das Verhalten kastrier- 

 ter Stockenten ( Anas platyrhynchos L.) und dessen Beeinf lussung durch 

 Testosteron. Z. Tierpsychol. 21: 348-358. [In German.] 



Fog, J. 1964. Dispersal and survival of released Mallards ( Anas platyrhyn- 

 chos). Dan. Rev. Game Biol. 4: 1-57. 



193 



