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Black-throated Green Warbler


Black Throated Green WarblerIn a 1991 review of the status of wildlife species in Alberta, the Black-throated Green Warbler was placed on the Yellow List of sensitive species that are not at risk in the province. In 1996, the species was upgraded to the Blue List of species that may be at risk of long term declines to non-viable population levels. This designation was made based on concerns over anticipated population declines in some areas coupled with habitat loss in the face of forest harvesting. The Black-throated Green Warbler is not presently on the Alberta Natural Heritage Information Centre's Tracking or Watch List. In a conservation and management priority setting exercise, the Black-throated Green Warbler was ranked seventeenth out of 232 land bird species in Alberta in terms of provincial supervisory responsibility. It was the twelfth ranked songbird, and the eighth ranked of predominantly forest breeding songbirds (there are over 100 000 species of songbirds that breed in Alberta). This ranking reflects both the species' extensive geographic range in the province combined with potential threats to its persistence.

Reprinted from Alberta Wildlife Status Report No. 23 (1999), with permission from Alberta Sustainable Resource Development.

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