000 01565cam  2200337za 4500
0019.849312
003CaOODSP
00520221107153903
007cr |||||||||||
008171229s1976    onc ||||o    f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn---
0861 |aCW69-9/60E-PDF
1001 |aErskine, Anthony J., |d1931-
24514|aThe co-operative Breeding Bird Survey in Canada, 1975 |h[electronic resource] / |cby Anthony J. Erskine.
260 |a[Ottawa] : |bCanadian Wildlife Service, |c1976.
300 |a[9] p.
4901 |aProgress notes ; |vno. 60
500 |a"March 1976."
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
500 |aIssued also in French under title: Étude collective des populations d'oiseaux nicheurs au Canada, 1975.
504 |aIncludes bibliographical references.
520 |a"The Breeding Bird Survey (BBS) was started in Canada in 1966 as an experimental study. We now use it to follow year-to-year changes in numbers of birds (especially non- gamebirds) in most settled areas of Canada"--Introd.
69207|2gccst|aBirds
69207|2gccst|aSurveys
7101 |aCanada. |bEnvironment Canada.
7102 |aCanadian Wildlife Service.
77508|tÉtude collective des populations d’oiseaux nicheurs au Canada, 1975 |w(CaOODSP)9.859918
830#0|aProgress notes (Canadian Wildlife Service)|vno. 60|w(CaOODSP)9.504439
85640|qPDF|s667 KB|uhttps://publications.gc.ca/collections/collection_2017/eccc/CW69-9-60-eng.pdf