The co-operative Breeding Bird Survey in Canada, 1972 / by Anthony J. Erskine.: CW69-9/32E-PDF
"The Breeding Bird Survey is a co-operative attempt to detect and measure year-to-year changes in numbers of birds (chiefty land birds)"--Introd.
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| Department/Agency | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Title | The co-operative Breeding Bird Survey in Canada, 1972 / by Anthony J. Erskine. |
| Series title | Progress notes ; no. 32 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Other language editions | [French] |
| Format | Electronic |
| Electronic document | |
| Note(s) | "May 1973." Digitized edition from print [produced by Environment and Climate Change Canada]. "With Appendix by G.E. John Smith." Issued also in French under title: Étude collective des populations d’oiseaux nicheurs du Canada, 1972. Includes bibliographical references. |
| Publishing information | Ottawa : Canadian Wildlife Service, 1973. |
| Author / Contributor | Erskine, Anthony J., 1931- Smith, G. E. J.(George E. John) |
| Description | 15 p. |
| Catalogue number |
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| Subject terms | Birds Surveys |
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