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The ear tufts are usually dusky in front and paler tawny on the back. Long-eared owl possess a blackish bill color while its eyes may vary from yellowish-orange to orange-red, tarsi and toes feathered. [4] [8] [36] The long-eared owl is a medium-sized owl, which measures between 31 and 40 cm (12 and 16 in) in total length.
Eleven species have been recorded in Ohio. Eastern screech-owl, Megascops asio (B) Great horned owl, Bubo virginianus (B) Snowy owl, Bubo scandiacus; Northern hawk owl, Surnia ulula (R) Burrowing owl, Athene cunicularia (R) Barred owl, Strix varia (B) Great gray owl, Strix nebulosa (R) Long-eared owl, Asio otus; Short-eared owl, Asio flammeus
In two other species of owls with asymmetrical ears, the saw-whet owl and the long-eared owl, the asymmetry is achieved by different means: in saw whets, the skull is asymmetrical; in the long-eared owl, the skin structures lying near the ear form asymmetrical entrances to the ear canals, which is achieved by a horizontal membrane. Thus, ear ...
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Their study concluded that these owls could adapt depending on the prey and also with the other predators in the areas where they live. Engel et al. (2015) in Chain O'Lakes State Park, Illinois, during the winter of 1987–88, compared northern saw-whet owls to long-eared owls. Engel confirmed the saw-whet owl's strong preference for small mammals.
The genus Asio was introduced by the French zoologist Mathurin Jacques Brisson in 1760 with the long-eared owl (Asio otus) as the type species. [1] [2] The genus name is from asiō, the Latin name used by Pliny the Younger for a type of horned owl, [3] the feather tufts on the head of these owls give the appearance of "ears" which is a defining characteristic.
Experts estimate the entire population is less than 30,000 in North America — and only a fraction of those migrate a long distance in a given year — making the owl’s cameo all the more unusual.
A long-eared owl (Asio otus) in an erect pose The laughing owl (Ninox albifacies), last seen in 1914. Genus Aegolius – the saw-whet owls, four species; Genus Asio – the eared owls, eight species; Genus Athene – two to four species (depending on whether the genera Speotyto and Heteroglaux are included or not)