| 000 | 00000cam 2200000za 4500 |
| 001 | 9.855508 |
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| 003 | CaOODSP |
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| 005 | 20241203113642 |
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| 007 | cr ||||||||||| |
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| 008 | 180419s1976 onc |||#o f00| 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aCW69-1/24E-PDF |
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| 100 | 1 |aSugden, Lawson G. |
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| 245 | 10|aWaterfowl damage to Canadian grain |h[electronic resource] : |bcurrent problem and research needs / |cby Lawson G. Sugden. |
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| 260 | |aOttawa : |bCanadian Wildlife Service, |cc1976. |
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| 300 | |a25 p. |
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| 490 | 1 |aOccasional paper ; |vno. 24 |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"Waterfowl damage to crops in Alberta, Saskatchewan and Manitoba first became severe in the 1940's when the practice of swathing grain became prevalent. Mallards (Anas platyrhynchos) cause the most damage, which is sustained primarily by barley and wheat. Loss of grain is most severe in wet autumns that delay the harvest and tends to be chronic near large wetlands that harbour ducks in autumn"--Abstract. |
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| 546 | |aIncludes abstract in French. |
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| 692 | 07|2gccst|aAquatic birds |
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| 692 | 07|2gccst|aCrops |
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| 692 | 07|2gccst|aPests |
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| 693 | 4|aWaterfowl |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aCanadian Wildlife Service. |
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| 830 | #0|aOccasional paper (Canadian Wildlife Service)|vno. 24|w(CaOODSP)9.504780 |
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| 856 | 40|qPDF|s2.26 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/CW69-1-24-eng.pdf |
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