The barred owl was first described by Philadelphia naturalist Benjamin Smith Barton in 1799. The species was named due to the varied directions the dusky markings take on their underside.
The barred owl is roughly intermediate in size between the larger Ural and the smaller tawny owl, but the structural features of its relatively short and decurved claws more so resemble the tawny species as does their dietary and habitat ecology. The spotted owl has been hypothesized to be within a superspecies with the barred owl. However, genetic testing reveals very early divergence (likely at or near their ancestor's entry to North America) between spotted and barred owls.
Binomial nomenclature: Strix varia