The co-operative Breeding Bird Survey in Canada, 1978 / by K.E. Freemark ... [et al.]. : CW69-9/99E-PDF
"The Breeding Bird Survey (BBS) began in Canada in 1966. It provides a means of assessing year to year changes as well as long-term trends in numbers of birds (especially songbirds) in settled areas of Canada"--Introd.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.849598&sl=1
Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. |
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Titre | The co-operative Breeding Bird Survey in Canada, 1978 / by K.E. Freemark ... [et al.]. |
Titre de la série | Progress notes ; no. 99 |
Type de publication | Série - Voir l'enregistrement principal |
Langue | [Anglais] |
Autres langues publiées | [Français] |
Format | Électronique |
Document électronique | |
Note(s) | "May 1979." 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 1978. Includes bibliographical references. |
Information sur la publication | [Ottawa] : Canadian Wildlife Service, 1979. |
Auteur / Contributeur | Freemark, K. E. |
Description | 21 p. |
Numéro de catalogue |
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Descripteurs | Birds Surveys |