Maryland's Wild Acres
Owls of Maryland
Most people only hear owls, but some folks are lucky enough to catch a glimpse of a large owl swooping across the road after dark. Most owls in Maryland are secretive and active at dusk and dawn or at night.
Eighteen species of owls can be found in North America, eight of which occur in Maryland. Barred Owls, Barn Owls, Eastern Screech-Owls and Great-Horned Owls are commonly found throughout Maryland. Northern Saw-Whet Owls migrate through the State in late fall and a few occasionally breed in western Maryland in the summer. Short-Eared Owls and Long-Eared Owls historically nested in Maryland, but no breeding birds have been seen in a number of years. Snowy Owls occasionally migrate through the State and can be seen along Assateague Island.
Specialized Predators
Owls are carnivorous and have special adaptations that enable them to hunt at night. For example, their eyes are large and fixed, with binocular vision and good depth perception. Because owls are unable to move their eyes, they have developed an incredibly flexible neck that allows them to turn their head 270 degrees, from one side to the other. (Humans can only rotate their heads about 180 degrees.) Their eyes are also extremely light sensitive, allowing them to see well at night.
Another essential adaptation that allows owls to hunt at night is their extremely sensitive hearing. It is the owl’s facial disc that enables it to hear a soft rustling in the grass as the disc acts to funnel and amplify all sound to their ears. Many owls also have asymmetrical ears which allow the owl to detect the distance and direction from which sound is coming more accurately.
Owls also rely on silent flight to surprise their prey. Owl feathers are long and soft to help muffle sounds while flying. In addition, the leading edge of their flight feathers is soft and wavy to eliminate noise while flying. These are all perfect adaptations for finding and catching prey at night, and explain why owls have become the most efficient hunters of the night.
Owl Profiles
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Barn Owls are often found in rural areas near farmland and open countryside. They usually reside in the lofts of abandoned barns or silos but will also use nest boxes. Barn Owls have golden-buff markings on their wings and back, and a white chest that may be mottled with few black spots. Their heart-shaped face makes them easy to identify. Barn Owls make a variety of sounds including a hiss and a rasping screech that has been mistakenly identified as the terrifying screams of a woman. They primarily eat meadow voles and other rodents that are commonly found in farm fields. Barn Owls breed between April and early May and produce four to six young per year. Barn Owls are found throughout Maryland at any time of the year but are considered to be rare to uncommon. |
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Click here to check out a Barred Owl Nest Box Plan |
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Click here to check out a Screech Owl Nest Box Plan |
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Click here to find our more about Great -Horned Owl’s Nest Structure |
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Attracting Owls
If your neighborhood or property has a number of mature or dead trees or logs, then you may already have nesting Eastern Screech Owls. If you live in a relatively wooded area near a river, then you may have a nesting pair of Barred Owls. Rural areas that are wooded may be inhabited by Great-Horned Owls. During winter, areas with stands of evergreens are highly preferred as roosting sites for many species of owls. This is because dense vegetation, like evergreens, provides the best camouflage from potential predators. The key to attracting owls is to have their favorite nesting habitat. Neighborhoods with areas of tall grass or properties that are wooded and/or near a stream or river with an abundance of ground cover will provide the most food for owls.
If you live in an area with tall grass or near a stream, but without many mature or dead trees, then you can build nest box structures that may attract owls. Wooded properties may also attract Great-Horned Owls if a nesting structure, similar to the ones used in nature, is provided.
Photo credits: Barn Owl by USFWS, Barred Owl by Kerry Wixted, Eastern Screech-Owl by Kerry Wixted, Great-Horned Owl by Ronald Laubenstein (USFWS), Northern Saw-whet Owl by George Jett, Short-eared Owl by George Jett and Snowy Owl by Middleton Evans.
We want to hear from you!
Letters, e-mail, photos, drawings. Let us know how successful you are as you create wildlife habitat on your property. Complete the online Habichat Reader's Survey.
Write to Me!
Kerry Wixted
Natural Resources Biologist II
Maryland Wildlife and Heritage Service
MD Dept of Natural Resources
580 Taylor Ave., E-1
Annapolis MD 21401
phone: 410-260-8566
fax: 410-260-8596
e-mail: kwixted@dnr.state.md.us








