The relative effectiveness of fixed-wing aircraft and helicopters for surveying trumpeter swans / Len J. Shandruk and Kevin J. McCormick.: CW69-9/182E-PDF
"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.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.850274&sl=0
| Department/Agency | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Title | The relative effectiveness of fixed-wing aircraft and helicopters for surveying trumpeter swans / Len J. Shandruk and Kevin J. McCormick. |
| Series title | Progress notes ; no. 182 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Other language editions | [French] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Issued also in French under title: Efficacité comparée de l'avion et de l'hélicoptère pour les dénombrements de cygnes trompettes. "September 1989." Digitized edition from print [produced by Environment and Climate Change Canada]. |
| Publishing information | [Ottawa] : Canadian Wildlife Service, 1989. |
| Author / Contributor | Shandruk, Len J. McCormick, Kevin J. |
| Description | [1] p. |
| Catalogue number |
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| Subject terms | Aquatic Birds Surveying Trumpeter swans |
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