Nest boxes . : CW69-4/89-1991E-PDF ; CW66-48/1991E-PDF
"In Canada, about 50 species of birds, ranging in size from wrens to ducks, nest in cavities. Normally, woodpeckers and chickadees excavate these cavities in decayed trees or stumps. These birds make new holes each year, leaving the old ones for other cavity-nesting birds. Natural nest sites disappear as weakened or dying trees are removed from our forests for economic and safety reasons. As a result, there is intense competition for nest holes, with declines occurring in local populations of cavity-nesting species in recent years. By providing nest boxes in appropriate areas, we can help reverse this trend"--p. [2].
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.850967&sl=1
| Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. |
|---|---|
| Titre | Nest boxes . |
| Titre de la série | Hinterland who's who |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. "Reprinted with corrections, 1993"--Colophon. "Text: Based on 1961 pamphlet of same name by William H. Carrick; revised by Judith Kennedy, 1990"--Colophon. Cover title. Issued also in French under title: Nichoirs à oiseaux. |
| Information sur la publication | Ottawa : Canadian Wildlife Service, 1993, 1991. |
| Auteur / Contributeur | Carrick, William H. Kennedy, Judith,1961- |
| Description | [6] p. : ill. |
| Numéro de catalogue |
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| Édition | [Rev. 1990] |
| Descripteurs | Birds Habitats Nature conservation |