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Status of the Williamson's Sapsucker in British Columbia Cooper, J.M.
1995
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Abstract: The Williamsonís Sapsucker (Sphyrapicus thyroideus) is a primary cavity nester with a limited distribution and small population size compared to other species of sapsuckers. Information on abundance, habitat requirements, and reproductive biology in British Columbia is either very limited or lacking entirely. The impacts of timber harvesting on local populations are unquantified, but are undoubtedly negative and compounding annually. Management efforts should concentrate on 1) research on population biology and habitat requirements; 2) determining the impacts of logging on populations; and 3) securing sufficient reserves of suitable habitat. Of the two subspecies that occur in British Columbia, S. t. nataliae (southeastern B.C.) should be considered Threatened, while S. t. thyroideus (Thompson-Okanagan) should be considered Vulnerable.
 
Cooper, J.M.. 1995. Status of the Williamson's Sapsucker in British Columbia. Ministry of Environment, Lands and Parks. Species Status Report. WR69
 
Topic: Species status
Keywords: williamson's sapsucker, sphyrapicus thyroideus, species, status, report
ISSN:  Scientific Name: Sphyrapicus thyroideus
ISBN: 0-7726-2377-5 English Name: Williamson's Sapsucker
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