COSEWIC assessment and status report on the Williamson's sapsucker, Sphyrapicus thyroideus, in Canada . : CW69-14/452-2018E-PDF
"This migratory woodpecker depends on old-growth coniferous and mixed forests in the Southern Interior of British Columbia, with fewer than 1000 individuals breeding in two Canadian subpopulations. Its distribution is largely limited by the availability of large nest-trees, mostly several hundred years old. The main threat to this species is logging and forest harvesting, including removal of dangerous trees for worker safety, forest fires and fire suppression. Lower impact threats are housing and urban development, ranching, and renewable energy development. Despite recent forest harvest regulations in British Columbia intended to protect its nesting habitat, breeding numbers are anticipated to decline further"--Assessment Summary – November 2017, p. iii.
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| Ministère/Organisme | Committee on the Status of Endangered Wildlife in Canada. Canada. Environment and Climate Change Canada. |
|---|---|
| Titre | COSEWIC assessment and status report on the Williamson's sapsucker, Sphyrapicus thyroideus, in Canada . |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Édition précédente | COSEWIC assessment and status report on the Williamson's sapsucker, Sphyrapicus thyroideus, in Canada |
| Format | Électronique |
| Document électronique | |
| Note(s) | "Endangered 2017"--Cover. Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur le Pic de Williamson, Sphyrapicus thyroideus, au Canada. Includes bibliographic references: p. 38-46. |
| Information sur la publication | Ottawa : Committee on the Status of Endangered Wildlife in Canada, c2017. |
| Description | xii, 53 p. : col. photogr., maps, chart. |
| ISBN | 9780660267555 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Birds Assessment |