The co-operative Breeding Bird Survey in Canada, 1977 / by G.H. Finney, K.E. Freemark and A.J. Erskine. : CW69-9/84E-PDF
"The Breeding Bird Survey (BBS) has been active in Canada since 1966. This co-operative effort attempts to measure year-to-year and long-term changes in populations of birds (especially smaller land birds) in settled areas of Canada"--Introd.
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Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. |
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Titre | The co-operative Breeding Bird Survey in Canada, 1977 / by G.H. Finney, K.E. Freemark and A.J. Erskine. |
Titre de la série | Progress notes ; no. 84 |
Type de publication | Série - Voir l'enregistrement principal |
Langue | [Anglais] |
Autres langues publiées | [Français] |
Format | Électronique |
Document électronique | |
Note(s) | "May 1978." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Étude collective des populations d'oiseaux nicheurs au Canada en 1977. Includes bibliographical references. |
Information sur la publication | [Ottawa] : Canadian Wildlife Service, 1978. |
Auteur / Contributeur | Finney, G. H.(George Howard),1948- Freemark, K. E. Erskine, Anthony J., 1931- |
Description | [12] p. |
Numéro de catalogue |
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Descripteurs | Birds Surveys |