LITERATURE CITED 
Addy, C. E. 
1945, Massachusetts waterfowl survey. Progress report of P.-R. Project 4-R. 
Mass. Dept. Conservation. 21 pp. 
Allen, Durward L. 
1943, Michigan fox squirrel management. Mich. State Dept. Cons. Game Div. 
Pub. 100. 404 pp. 
Bellrose, Frank, C., Jr. 
1945. Ratio of reported to unreported duck bands in Illinois. Jour. Wildlife Mgt. 
9:254. 
Bump, Gardiner, Robert W. Darrow, Frank C. Edminster, and Walter F. Crissey 
1947. The ruffed grouse. N.Y. State Cons. Dept. 915 pp. 
Buss, Irven O. 
1946. Wisconsin pheasant population. Wis. Cons. Dept. Pub. 326, A-46. 184 pp. 
Cooke, May Thatcher 
1942. Returns from banded birds: some longevity records of wild birds. Bird- 
Banding 13:110. 
1943, Returns from banded birds: some miscellaneous recoveries of interest. 
Bird-Banding 14:67-74. 
Deevey, Edward S., Jr. 
1947. Life tables for natural populations of animals. Quart. Rey. Biol. 22:4, 
283-314. 
Errington, Paul L. 
1945. Some contributions of a fifteen-year local study of the northern bobwhite to 
a knowledge of population phenomena. Ecol. Monog,. 15:1-34. 
Elton, Charles 
1942. Voles, mice and lemmings. Oxford. 496 pp. 
Farner, Donald S. 
1945. Age groups and longevity in the American robin, Wilson Bul. 57:56-74. 
Flower, Stanley S. , 
1926. Contributions to our knowledge of the duration of life in vertebrate animals. 
IV, Birds. Zool. Soc. London Proc. 1925:1365-1422. 
Hann, Harry W. 
1948. Longevity of the oven-bird. Bird-Banding 19:5-12. 
Hanson, Harold C., and Robert H. Smith 
HIS 0: Canada geese of the Mississippi flyway, with special reference to an Illinois 
flock. Ill. Nat. Hist. Surv. Bul. 25(3):67-210. 
Hohn, E. O. 
1948. Mortality of adult and young mallards. Brit. Birds 41:233-5. 
Lack, David 
1943a. The age of the blackbird. Brit. Birds 36:166-75. 
1943b. The age of some more British birds. Brit, Birds 36:193-7. 
1943c. The age of some more British birds. Brit. Birds 36:214-21. 
Leopold, Aldo 
1933. Game management, Charles Scribner's Sons, New York. 481 pp. 
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