00000cam 2200000za 4500 9.855240 CaOODSP 20241203113642 cr ||||||||||| 180416s1963 onca #o f00| 0 eng d CaOODSP eng n-cn--- CW69-1/3E-PDF R69-1/3 Benson, Denis A., 1920- Use of aerial surveys by the Canadian Wildlife Service [electronic resource] / by Denis A. Benson. Ottawa : Canadian Wildlife Service, 1963. 35, [6] p. : ill. Occasional papers ; no. 3 Digitized edition from print [produced by Environment and Climate Change Canada]. Issued by the National Parks Branch, Department of Northern Affairs and National Resources. "This paper was presented at the meeting of the Commonwealth Advisory Aeronautical Research Council in Australia, April 1962."--Verso t.p. Includes bibliographical references. "Methods of aerial survey used by the Canadian Wildlife Service are as numerous as the types of survey being carried out. Results are even more diverse. The two major factors that dictate methods and determine results are 1) geography and 2) the attributes of the species concerned"--Introd. gccst Wildlife gccst Nature conservation Canada. Environment Canada. Canada. National Parks Branch. Canadian Wildlife Service. Canada. Department of Northern Affairs and National Resources. Occasional paper (Canadian Wildlife Service) no. 3 (CaOODSP)9.504780 PDF 3.42 MB https://publications.gc.ca/collections/collection_2018/eccc/CW69-1-3-eng.pdf