1. Introduction of Max McGraw Wildlife Foundation mallard ducks into Oklahoma and evaluation of their survival and adaptation;Allen,1975
2. The New York hand-reared duck program;Browne,1972
3. A comparison of behavioural and reproductive traits in wild and game farm mallards;Cheng,1978
4. A comparison of behavioural and reproductive traits in wild and game farm mallards;Cheng,1978
5. Mate preference in wild and domesticated (game-farm) mallards (Anas platyrhychos): II. Pairing Success;Cheng;Anim. Behav,1979