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| 01783cam 2200361za 4500 |
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| 001 | 9.849935 |
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| 003 | CaOODSP |
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| 005 | 20221107154034 |
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| 007 | cr ||||||||||| |
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| 008 | 180112s1984 oncd||||o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cnp--|an-cn-nt|an-us--- |
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| 086 | 1 |aCW69-9/142E-PDF |
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| 100 | 1 |aCooch, F. G. |
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| 245 | 10|aChanges in the net export of mallard from western Canada and the contiguous US, 1972-82 |h[electronic resource] / |cby F.G. Cooch and H. Boyd. |
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| 260 | |a[Ottawa] : |bCanadian Wildlife Service, |c1984. |
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| 300 | |a27 p. : |bcharts |
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| 490 | 1 |aProgress notes ; |vno. 142 |
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| 500 | |a"February 1984." |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 500 | |aIssued also in French under title: Variations de l'exportation nette de canards malards de l'ouest du Canada et des états américains voisins, de 1972 à 1982. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"Surveys by the USFWS/CWS show that the number of Mallard in May in the main production areas of the US and western Canada has dropped from 10.4 million in 1970 to 7.1 million in 1983"--Abstract. |
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| 692 | 07|2gccst|aAquatic birds |
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| 692 | 07|2gccst|aPopulation distribution |
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| 693 | 4|aMallards |
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| 700 | 1 |aBoyd, H. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aCanadian Wildlife Service. |
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| 775 | 08|tVariations de l’exportation nette de Canards malards de l’Ouest du Canada et des États américains voisins, de 1972 à 1982 |w(CaOODSP)9.860591 |
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| 830 | #0|aProgress notes (Canadian Wildlife Service)|vno. 142|w(CaOODSP)9.504439 |
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| 856 | 40|qPDF|s888 KB|uhttps://publications.gc.ca/collections/collection_2018/eccc/CW69-9-142-eng.pdf |
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