The patient predator : foraging and population ecology of the great blue heron Ardea herodias in British Columbia / Robert W. Butler.: CW69-1/86E-PDF
"This report presents the results of a six-year study (1986-91, including five breeding seasons and four winters) of the diet, food availability, foraging behaviour, use of habitats by age-classes and sex-classes, spacing of breeding colonies, and survival of the Great Blue Heron Ardea herodias on the Pacific coast of British Columbia. The general thesis of this study is that the availability of food energy largely dictates when herons use foraging habitats, the time of year that they breed, and which individuals survive"--Abstract.
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| Department/Agency | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Title | The patient predator : foraging and population ecology of the great blue heron Ardea herodias in British Columbia / Robert W. Butler. |
| Series title | Occasional paper ; no. 86 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Other formats | Paper-[English] |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Issued also in print format. Includes abstract in French. |
| Publishing information | Ottawa : Canadian Wildlife Service, c1995. |
| Author / Contributor | Butler, Robert William. |
| Description | 44 p. : ill. |
| Catalogue number |
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| Subject terms | Aquatic birds Ecology Herons |
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