Status of trumpeter swans in the southern Mackenzie District, Northwest Territories, in 1987 / Len J. Shandruk and Kevin J. McCormick. : CW69-9/177E-PDF
"The occurrence of breeding Trumpeter Swans (Cygnus buccinator) in the southem Mackenzie District, Northwest Territories, is a relatively recent phenomenon. The first bird was observed in 1970, but breeding was not recorded until 1977"--Introd.
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| Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Titre | Status of trumpeter swans in the southern Mackenzie District, Northwest Territories, in 1987 / Len J. Shandruk and Kevin J. McCormick. |
| Titre de la série | Progress notes ; no. 177 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "May 1988." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Situation du cygne trompette dans le sud du district de Mackenzie (Territoies du Nord-Ouest) en 1987. Includes bibliographical references. |
| Information sur la publication | [Ottawa] : Canadian Wildlife Service, 1988. |
| Auteur / Contributeur | Shandruk, Len J. McCormick, Kevin J. |
| Description | 5 p. : map |
| Numéro de catalogue |
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| Descripteurs | Aquatic birds Surveys Trumpeter swans |