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  • The range expansion of the northern barred owl : an evaluation of the impact on spotted owls

    Creator:
    Kelly, Elizabeth G.
    Abstract:
    Since their range expansion into the Pacific Northwest, anecdotal evidence suggests that northern barred owls (Strix varia varia) may be displacing northern spotted owls (Strix occidentalis caurina). My objectives were to characterize barred owl distribution and population increase in Oregon, investigate spotted owl territory performance before and after barred owl...
    Resource Type:
    Masters Thesis
    Full Text:
    and population increase in Oregon, investigate spotted owl territory performance before and after