00000nam 2200000za 4500 9.850525 CaOODSP 20241203113642 cr ||||||||||| 180123s2000 oncb||||o f000 0 eng d CaOODSP eng n-cn--- CW69-9/216E-PDF Dunn, Erica H. The Canadian Breeding Bird Survey, 1967-1998 [electronic resource] / E.H. Dunn, C.M. Downes, and B.T. Collins. Ottawa : Canadian Wildlife Service, 2000. 40 p. : map. Progress notes ; no. 216 "May 2000." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The Breeding Bird Survey (BBS) is a cooperative effort among skilled amateur and professional ornithologists to document long-term changes in bird populations"--Introd. gccst Birds gccst Population gccst Surveys Downes, C. M. Collins, B. T., 1949- Canada. Environment Canada. Canadian Wildlife Service. Le relevé des oiseaux nicheurs du Canada, 1967-1998 (CaOODSP)9.860914 The Canadian breeding bird survey, 1967-1998 / (CaOODSP)9.615158 Progress notes (Canadian Wildlife Service) no. 216 (CaOODSP)9.504439 PDF 1.94 MB https://publications.gc.ca/collections/collection_2018/eccc/CW69-9-216-eng.pdf