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J. B. HARKIN, NATIONAL PARKS COMMISSIONER MIGRATORY BIRDS CONVENTION ACT HISTORIC SITES DEPARTMENT -OF THE INTERIOR NATIONAL PARKS OF CANADA OTTAWA IN YOU REPLY REFE To FILEPERSONAL. June 16,1930. Dear Leopold,- I was very much interested ih your beginning of a summary of drinking habits of game birds and mammals. Unfortunately, I am afraid that I have not much to add. There is a good deal of valuable information hidden in private note books, however, and I think that you might get good infor- mnation by encouraging observers to record what they have seen in places where it will be available to subsequent workers in the same field. To my mind there is always the danger of getting erroneous in- formation by sending out a simple questionnaire. The questions sometimes have the effect of being leading questions and of influencing the answers. This ob- jection does not arise where the obseiver records the things that he sees without any definite ques- tions before him. Perhaps it would help you to circul- arize such papers as "The Auk," The Journal of Mam- malogy," Eind the Canadian Field-Naturalist " and try to encourage observers to place on record facts re- lating to the water requirements of game. With kind regards, I remain Aldo Leopold., Esq., Yours very truly, In Charge, Game Survey, 421 Chemistry Building, Madison, Wisconsin, U.S.A.
.1.3. HA RtKIN. rI,,l/ L-.qz a ATIONAL PARKS x COMMIsaHER MIGRATORY BIRDS CONVENTION ACT HISTORIC SITES DEPARTMENT OF THE INTERIOR NATIONAL PARKS OF CANADA Personal. OTTAWA IN YOUR REPLY R TO VL....................... .......... Dear Mr. Leopold,- With reference to your letter of April 29, 1930, I handed the "Canadian Field-Naturalist" your enclosure ordering a copy of the number which con- tains the article on the Gray Partridge in the Okana- gan Valley, British Columbia. The "Naturalist" is a very important paper and contains numerous articles on Canadian game mam- mals, and migratory birds. Of course it contains much material other than mammals and birds. It is too bad that you cannot find a complete file of it for analysis along the line that you require. Per- haps you had better come and work at Ottawa for a while where several files are available. Seton quotes from it quite widely in his book "Lives." I do not know that you need the complete set of the"Canadian Field-Naturalist". It might do if you had it from 1918 to date. This can be furnished at a reasonable price by the Club. The particular items on Canadian game which might be of interest to you, and which are not listed in your letter are : Taverner's "Birds of , Western Canada", book, - for sale by National Museum of Canada, $2.00 per copy; Taverner's Birds of Eastern i 0anada", ou.t of print; Macoun and Macoun "Catalogue of Canadian Birds", out of print, often for sale at about $3.00; "Birds of Saskatchewan" by H. H. iltchell, special nuJmber of the "Canadian Field-Naturalist" a few years ago; F. Bradshaw had a paper on the "Intro- duction of the Hungarian Partridge in Western Canada"." ,!' He is now Director of the Provincial Museum, Regina, Saskatchewan, and might have a separate or copy of this paper. There is good Canadian material in Phillip's "Dmcks of the World", and, of course, "The North Ameri- can Paunas" which deal with Canada are excellent. "Number 27 Athabasca-MacKenzie District" by Preble, and the one that deals with the Hudson Bay Region are per- haps the most important. There would be a wealth of short articles as well and the summary reports of the Geological Survey would be useful, but I doubt if you could find them without coming to Ottawa and working for a while at the Library of the National Museum and the Geological Survey. Yours very truly, Hoye loyd Supervisor, Wild Life Division Aldo Leopold, Esq., 421 Chemistry Bldg., Madison, Wisconsin.