| 000 | 00000nam 2200000za 4500 |
| 001 | 9.850274 |
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| 003 | CaOODSP |
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| 005 | 20241203113641 |
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| 007 | cr ||||||||||| |
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| 008 | 180118s1989 onc ||||o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn-nt |
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| 086 | 1 |aCW69-9/182E-PDF |
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| 100 | 1 |aShandruk, Len J. |
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| 245 | 14|aThe relative effectiveness of fixed-wing aircraft and helicopters for surveying trumpeter swans |h[electronic resource] / |cLen J. Shandruk and Kevin J. McCormick. |
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| 260 | |a[Ottawa] : |bCanadian Wildlife Service, |c1989. |
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| 300 | |a[1] p. |
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| 490 | 1 |aProgress notes ; |vno. 182 |
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| 500 | |aIssued also in French under title: Efficacité comparée de l'avion et de l'hélicoptère pour les dénombrements de cygnes trompettes. |
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| 500 | |a"September 1989." |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 520 | 3 |a"The effectiveness of fixed-wing aircraft and helicopters for surveying Trumpeter Swans Cygnus buccinator is compared. The helicopter survey yielded 70% more adults and 44% more cygnets than the fixed-wing aircraft survey"--Abstract. |
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| 692 | 07|2gccst|aAquatic Birds |
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| 692 | 07|2gccst|aSurveying |
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| 693 | 4|aTrumpeter swans |
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| 700 | 1 |aMcCormick, Kevin J. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aCanadian Wildlife Service. |
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| 775 | 08|tEfficacité comparée de l'avion et de l'hélicoptère pour les dénombrements de cygnes trompettes |w(CaOODSP)9.860747 |
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| 830 | #0|aProgress notes (Canadian Wildlife Service)|vno. 182|w(CaOODSP)9.504439 |
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| 856 | 40|qPDF|s103 KB|uhttps://publications.gc.ca/collections/collection_2018/eccc/CW69-9-182-eng.pdf |
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