00000nam 2200000za 4500 9.850298 CaOODSP 20241203113641 cr ||||||||||| 180118s1990 oncb||||o f000 0 eng d CaOODSP eng n-cn--- CW69-9/188E-PDF Erskine, Anthony J., 1931- The cooperative Breeding Bird Survey in Canada, 1988 [electronic resource] / Anthony J. Erskine, Brian T. Collins, and John W. Chardine. [Ottawa] : Canadian Wildlife Service, 1990. 15 p. : maps. Progress notes ; no. 188 Issued also in French under title: Étude collective des populations d'oiseaux nicheurs au Canada, 1988. "March 1990." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The Breeding Bird Survey (BBS) was started experimentally in the United States in 1965 and has been operational in Canada, with coordination by the Canadian Wildlife Service (CWS), since 1966. It was set up to detect and measure trends in numbers of birds, particularly small land birds, across North America"--Introd. gccst Birds gccst Surveys Collins, B. T., 1949- Chardine, John W. Canada. Environment Canada. Canadian Wildlife Service. Étude collective des populations d'oiseaux nicheurs au Canada, 1988 (CaOODSP)9.860800 Progress notes (Canadian Wildlife Service) no. 188 (CaOODSP)9.504439 PDF 764 KB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-188-eng.pdf