Spotlight on the 9 Captivating Owls in Iowa

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Owls in Iowa

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Amidst Iowa’s diverse ecological tapestry, spanning from its expansive prairies to its deciduous forests and riparian habitats, resides a fascinating array of owls. These nocturnal Iowa birds of prey play an essential role within Iowa’s ecosystems, functioning as both predators and prey in their food webs.

Comprising species from the compact Eastern Screech Owls to the formidable Great Horned Owls, each owl exhibits unique adaptations and intriguing behaviors suited to its particular habitat.

Iowa Owls

Owl SpeciesFrequency in IowaPresence in IowaWhere to Find in Iowa
Great Horned OwlHighStatewideLedges State Park, Boone; Backbone State Park, Dundee
Eastern Screech OwlHighStatewideLake Macbride State Park, Solon; Maquoketa Caves State Park, Maquoketa
Barred OwlHighStatewideYellow River State Forest, Harpers Ferry; Waubonsie State Park, Hamburg
Northern Saw-whet OwlModerateNorthern and Eastern IowaNeal Smith National Wildlife Refuge, Prairie City; Effigy Mounds National Monument, Harpers Ferry
Short-eared OwlLowOpen Fields and WetlandsUnion Slough National Wildlife Refuge, Burt; Neal Smith National Wildlife Refuge, Prairie City
Barn OwlVery LowScattered Across StateHitchcock Nature Center, Honey Creek; Chichaqua Bottoms Greenbelt, Maxwell
Long-eared OwlLowScattered Across StateMines of Spain Recreation Area, Dubuque; Volga River State Recreation Area, Fayette
Snowy OwlVery Low (Seasonal)Mainly Northern Iowa in WinterGeorge Wyth State Park, Waterloo; Saylorville Lake, Polk County
Burrowing OwlOccasionalMainly in the western part of the state during breeding seasonLoess Hills State Forest and at Broken Kettle Grasslands Preserve

Owl Species Found in Iowa 

Great Horned Owl (Bubo virginianus)

Great Horned Owl Scientific Name Bubo virginianus

The Great Horned Owl is a large owl with long wings and a large head. It’s one of the most common owls in North America.

Great Horned Owls are large, stocky birds with soft feathers that are gray to brown on their backs and white on their chests. Their faces are characterized by two black “ear” tufts, which can be raised or flattened depending on the owl’s mood. The eyes are yellow, orange, or red in color.

The habitat of the Great Horned Owl is a variety of different environments such as forests and deserts. They also live near water sources such as lakes, streams and rivers where they can hunt for fish.

The diet of the Great Horned Owl consists primarily of small mammals such as mice and rats; however they will also eat other rodents such as squirrels, rabbits and porcupines. They have been known to eat skunks too.

Eastern Screech-Owl (Megascops asio)

Eastern Screech-Owl Scientific Name: Megascops asio
Eastern Screech-Owl range map credit https://www.allaboutbirds.org/

Eastern Screech-Owl Sound

credit https://xeno-canto.org/490460

Scientific Name: Megascops asio

Length: 6 to 10 in

Wingspan: 8 to 24 in 

Weight: 4 – 8.5 oz

The Eastern Screech-Owl is a small owl species native to most wooded environments of the eastern half of North America, from the Canadian provinces to Florida and Texas.

Eastern Screech-Owls are relatively small and exhibit a complex pattern of gray or reddish-brown coloration, which provides excellent camouflage against tree bark.

These owls are known for their distinctive call, which is often described as a haunting trill or a whinny-like sound. Despite their name, they do not actually produce a “screech.”

Eastern Screech-Owls feed on a variety of prey, ranging from small mammals and birds to insects and even earthworms. It is primarily nocturnal, hunting at night from a low perch and swooping down onto prey.

Eastern Screech-Owls nest in tree cavities or abandoned woodpecker nests, but they readily adapt to nesting boxes where natural cavities are not available. They typically lay between 2 to 6 eggs, which are incubated primarily by the female.

Barred Owl (Strix varia)

Barred Owl Scientific Name Strix varia
Barred Owl range map credit https://www.allaboutbirds.org/

Barred Owl Sound

credit https://xeno-canto.org/690957

Scientific Name: Strix varia

Length: 40 to 63 cm (16 to 25 in)

Wingspan: 96 to 125 cm (38 to 49 in)

Weight: 468 to 1,150 g

The Barred Owl is a medium-sized owl with a barred pattern on its chest and belly. They have large yellow eyes that allow them to see well in low light conditions. Their ears are not very large which means they do not hear very well but they have excellent hearing abilities which allow them to detect sounds up to 1 mile away. Their feathers are brown and streaked with white, and they have black bars on their chests and wings.

Their habitats include forests, woodlands, orchards, parks, farmland and suburban backyards.

Barred Owls (also known as hoot owl) eat small mammals such as mice, rats and squirrels. They also eat insects such as beetles or grasshoppers. These owls hunt during the day when it is light out so that they can see their prey better than at night when they would be using senses other than sight like sound or smell to find their food source.

Barred owls are monogamous birds which means they mate for life. They build nests in trees or cavities on the ground and lay 2-4 eggs per year. The incubation period for these eggs lasts about 28 days before hatching takes place.

Barn Owl (Tyto alba)

Barn Owl Scientific Name: Tyto alba
Barn Owl range map credit https://www.allaboutbirds.org/

Barn Owl Sound

credit https://xeno-canto.org/696742

Scientific Name: Tyto alba

Length: 13 to 15 in

Wingspan: 31 to 37 in 

Weight: 9.2 oz

The Barn Owl is a widespread species of owl known for its distinctive heart-shaped facial disc.

Barn Owls are medium-sized owls, they are pale overall with golden-brown wings and back, contrasted by a white face, chest, and belly. Their most notable feature is their heart-shaped facial disc, which helps channel sound to their ears.

Barn Owls are typically found in open habitats, including farmland, woodland, and marshes. They are named for their habit of nesting in human structures such as barns, church towers, and in the hollows of large trees. These owls are nocturnal, hunting at night and roosting during the day.

The diet of Barn Owls primarily consists of small mammals, particularly rodents such as mice and rats. They are known for their silent flight, which allows them to sneak up on their prey without detection.

Barn Owls have a unique nesting behavior. They do not build nests, but instead, lay their eggs directly on the bare surface of a secluded ledge or cavity. A female typically lays 4-7 eggs, and both parents help incubate the eggs and care for the chicks.

The long-eared owl (Asio otus)

Long-eared Owl Scientific Name Asio otus
Long-eared Owl range map credit https://www.allaboutbirds.org/

Long-eared Owl Sound

credit https://xeno-canto.org/737216

Scientific Name: Asio otus

Length: 12 and 16 in

Wingspan: 2 ft 10 in to 3 ft 4 in

Weight: 5.6 to 15.3 oz

The Long-eared Owl is a medium-sized owl species known for its distinctively long ear tufts, which can be raised or lowered depending on the bird’s mood or intention.

Long-eared Owls have mottled brown and cream plumage, which provides excellent camouflage among the trees. Their most distinctive features are their long, black-tipped ear tufts, which are set closer to the center of the head than in most other owl species.

These owls inhabit a wide variety of habitats, including deciduous and coniferous forests, woodlands, and even semi-deserts.

The Long-eared Owl’s diet primarily consists of small mammals, especially voles, but they will also take small birds and insects. They are skillful hunters, often capturing prey from a perch or in flight.

In terms of nesting behavior, Long-eared Owls do not construct their own nests, instead they take over old nests built by other bird species, usually those of corvids or other large birds. They lay an average of 4 to 5 eggs, which are incubated by the female while the male provides food.

Short-eared Owl (Asio flammeus)

Short-eared Owl Scientific Name Asio flammeus
Short-eared Owl range map credit https://www.allaboutbirds.org/

Short-eared Owl Sound

credit https://xeno-canto.org/669192

Scientific Name: Asio flammeus

Length: 13–17 in

Wingspan: 33 to 43 in

Weight: 7.3–16.8 oz

The Short-eared Owl is a medium-sized owl species with a wide distribution, found across North and South America, Europe, Asia, and many Pacific islands. Despite its name, the “ears” of the Short-eared Owl are not often visible, as they are small and tend to blend with the bird’s feathers.

The owls are predominantly brown with buff and white accents throughout their body and wings, and dark patches around their yellow eyes.

Short-eared Owls diet consists largely of small mammals, especially voles. However, they are opportunistic hunters and will also prey on a variety of other animals, including other birds, when available.

Their habitat is characterized by open areas like grasslands, marshes, and tundra. They nest on the ground, which is unusual for owls, and this makes them vulnerable to ground predators. As such, they often live in areas with tall grasses or other ground cover for protection.

Northern Saw-whet Owl (Aegolius acadicus)

Northern Saw-whet Owl Scientific Name Aegolius acadicus
Northern Saw-whet Owl range map credit https://www.allaboutbirds.org/

Northern Saw-whet Owl Sound

credit https://xeno-canto.org/702864

Scientific Name: Aegolius acadicus

Length: 17–22 cm (6.7–8.7 in)

Wingspan: 42–56.3 cm (16.5–22.2 in)

Weight: 54 to 151 g (1.9 to 5.3 oz)

The Northern Saw-whet Owl is a tiny, speckled gray owl and it’s one of the smallest owls in North America. It’s also known as the Little Owl or Wood Owl in some areas.

Northern Saw-whet Owls have dark brown eyes, white eyebrows, and yellow beak. It has brownish-grey feathers that are spotted with white. The owl’s legs are covered in feathers and appear nearly invisible when the bird is perched on a branch or tree.

In the winter they migrate south to warmer climates. They prefer to live in dense coniferous forest with large trees but will occasionally nest in shrubs or other vegetation that can protect them from predators.

The Northern Saw-whet Owl eats mice and voles (small rodents), small birds, frogs, salamanders, moles and shrews, but unlike most owls they chop their prey up and spread over a few meals. They will also eat insects like beetles and grasshoppers if they are available. It hunts from a perch at night using its excellent hearing to locate prey items within about 30 feet (9 meters) of its nest.

These owls nest in tree cavities usually located close to water sources such as lakes or rivers where they can find their food source (insects). They lay 2-4 eggs at one time which incubate for about 30 days before hatching.

Snowy owl (Bubo scandiacus)

Snowy owl Scientific Name Bubo scandiacus
Snowy owl range map credit https://www.allaboutbirds.org/

Snowy owl Sound

credit https://xeno-canto.org/343145

Scientific Name: Bubo scandiacus

Length: 20.7 to 28 in

Wingspan: 3 ft 10 in to 6 ft 0 in

Weight: 3.2lb to 5.3lb

The Snowy Owl, is of the most well-known species of owls, the Snowy Owl is renowned for its striking appearance and adaptations to its extreme environment.

Snowy Owls are medium sized birds that possess a rounded head, yellow eyes, and a black beak. The most distinctive feature of the Snowy Owl is its white plumage, which provides effective camouflage in its snowy habitat. Male Snowy Owls are often almost completely white, while females and younger owls have more extensive dark barring on their plumage.

Unlike many owl species, Snowy Owls are primarily diurnal, which means they are active during the day. This is an adaptation to life in the Arctic, where there can be 24 hours of daylight in the summer. Their diet mainly consists of small mammals, particularly lemmings, but they are known to eat a variety of animals including birds, fish, and even carrion when necessary.

Snowy Owls nest on the ground, usually on a mound or boulder. Their breeding success is closely tied to the availability of food, and in good years a single pair of owls can raise a large brood of chicks.

Burrowing Owl (Athene cunicularia)

Burrowing Owl Scientific Name Athene cunicularia
Burrowing Owl range map credit https://www.allaboutbirds.org/

Burrowing Owl Sound

content https://xeno-canto.org/730164

Scientific Name: Athene cunicularia

Length: 7–11 in

Wingspan: 20–24 in 

Weight:5–8 oz

The Burrowing Owl is a small, long-legged species of owl found in North and South America. Known for its unusual habit of living in burrows in the ground.

Burrowing Owls have a rounded head with no ear tufts and bright yellow eyes. Their overall coloration is mottled brown and white with a distinct white “eyebrow” above each eye.

Their primary habitat includes open landscapes such as grasslands, deserts, agricultural areas, golf courses, and even airports. As their name suggests, these owls often reside in burrows, many of which are abandoned by prairie dogs, ground squirrels, or other burrowing animals. In some cases, they may also dig their own burrows.

Burrowing Owls diet consists mainly of small mammals and insects, but they also eat birds and reptiles.

Burrowing Owls have a unique nesting behavior. They lay their eggs in an underground burrow to protect them from predators and extreme weather. Clutch sizes range from 6 to 11 eggs, which are incubated for about a month before hatching.

Where to Spot Iowa’s Owls

Neal Smith National Wildlife Refuge, Prairie City: This wildlife refuge is a haven for a variety of bird species, including owls like the Great Horned Owl and Barred Owl. In winter, you might also spot the Short-eared Owl in the grasslands.

Loess Hills State Forest, Pisgah: This unique landscape offers the opportunity to spot Great Horned Owls and Barred Owls. During migration season, you might also see Northern Saw-whet Owls.

Boone River Greenbelt, near Boone: This mix of woodland and prairie habitat is great for spotting a variety of owl species, including the Great Horned Owl, Barred Owl, and Eastern Screech Owl.

Rathbun Lake, Centerville: The surrounding woodland and grassland areas around this large reservoir are a good habitat for owls such as the Great Horned Owl and Barred Owl.

Effigy Mounds National Monument, Harpers Ferry: This historical site not only features Native American mounds, but its wooded bluff lands are also home to several other owl species, including the Barred Owl and Eastern Screech Owl. You can sometimes spot the northern hawk owls here as well.

StateMain Owl Watching Sites
Iowa OwlsNeal Smith National Wildlife Refuge, Yellow River State Forest
Minnesota OwlsSax-Zim Bog, Superior National Forest
South Dakota OwlsBlack Hills National Forest, Badlands National Park
Nebraska OwlsValentine National Wildlife Refuge, Niobrara Valley Preserve
Missouri OwlsMingo National Wildlife Refuge, Mark Twain National Forest
Wisconsin OwlsHoricon Marsh, Chequamegon-Nicolet National Forest
Illinois OwlsStarved Rock State Park, Crab Orchard National Wildlife Refuge

Tips on How to Spot Owls in Iowa?

  1. Visit Suitable Habitats: Look for owl-friendly environments, which typically include woodland areas, marshes, and open fields. Some known birding spots in Iowa like Yellow River State Forest or Neal Smith National Wildlife Refuge can be ideal places to start.

  2. Time Your Visit: Owls are primarily nocturnal creatures, so the best time to spot them is at dawn or dusk. However, during the breeding season (typically late winter to early spring), you may spot some species hunting in the daytime to feed their young.

  3. Learn Owl Calls: Recognizing owl calls is essential. Listen for distinctive calls at night, and you might be able to locate the bird even if you can’t see it.

  4. Tread Quietly: Owls have excellent hearing, so keep noise levels to a minimum when in their habitat. Move slowly and quietly, minimizing disturbance.

  5. Look For Signs: Look for owl pellets on the ground under trees, or white droppings on the trunks or base of trees. These can be good indicators that an owl is nearby.

  6. Binoculars and Spotting Scopes: These can greatly enhance your ability to spot owls in the distance, especially in the low-light conditions when owls are most active.

  7. Join Local Birding Groups: Local bird watching societies or guided tours can offer a wealth of knowledge and experience in finding owls and other local wildlife.

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