The Barred Owl is a master of the forest, but its recent expansion is controversial.
In short: Known for its distinctive "Who cooks for you?" call, the Barred Owl was once a fixture of eastern North American forests. During the twentieth century, however, this sedentary predator pushed into the Pacific Northwest, where it now competes with the threatened Spotted Owl, sparking intense debate over conservation management.
The Barred Owl (Strix varia) is a nonmigratory raptor characterized by its brown-and-white striped plumage and soulful brown eyes. While historically native to the eastern United States and parts of Canada and Mexico, the species underwent a significant range expansion throughout the twentieth century. Today, it is found as far west as the Pacific coast, including California and British Columbia. These birds are highly sedentary; a study of 158 banded individuals found that none had traveled further than 6 miles from their original location, making their rapid westward spread particularly notable.
This expansion has placed the Barred Owl in direct conflict with the Spotted Owl, a smaller, less aggressive cousin already struggling with habitat loss. The Barred Owl is an opportunistic predator that displaces the Spotted Owl from its territory and even hybridizes with it. Because the threats to the Spotted Owl are intensifying, biologists have proposed culling operations to mitigate the impact of the invading Barred Owl population. The two species are genetically distinct, with evidence suggesting an early divergence that likely occurred when their common ancestor first arrived in North America.
Despite their recent notoriety as an invasive force in the West, Barred Owls have a long history on the continent. Pleistocene fossils dating back at least 11,000 years have been recovered in Tennessee, Ontario, and Florida. They are well-adapted to mature forests and treed swamps, where they hunt by dropping from perches to secure prey. Their resilience is remarkable; the oldest recorded individual was at least 26 years and 7 months old, having been banded in 1993 and recaptured in 2019. While they are often heard rather than seen, their vocalizations—ranging from barking calls to duets—remain a classic sound of the deep woods.
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Sources
- Summary by Intellect · source: Barred owl | Size, Diet, Call, & Facts | Britannica
- Also: Barred Owl Overview, All About Birds, Cornell Lab of Ornithology
- Also: Barred owl
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