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Barred Owls and Northern Spotted Owls in the Eastern Cascade Range, Washington
Competitive interactions with barred owls (Strix varia) are an important factor contributing to the observed decline in the northern spotted owl (Strix occidentallis caurina) population in Washington. My goal was to develop an understanding of barred owl habitat associations at spatial scales corresponding to home ranges and ...
Black-capped Vireos and White-eyed Vireos: How two birds adapt to challenges of living in Central Texas
Black-capped vireos (Vireo atricapilla) and white-eyed vireos (Vireo griseus) are closely related songbirds, which occupy the same landscape in Central Texas. While white-eyed vireos are common and widespread, black-capped vireos are federally endangered with a restricted distribution. Both species are vulnerable to brown-headed ...