Rough-legged Hawk (Buteo lagopus)

The Rough-legged Hawk (Buteo lagopus) is a substantial member of the Accipitridae family, known for its feathered legs and hovers while hunting. Along Oklahoma's Central Flyway, this species is a winter visitor, frequenting the open fields and grasslands that characterize much of northwestern Oklahoma's diverse landscape. The Salt Plains National Wildlife Refuge near Jet, Oklahoma, serves as one of the premier locations for observing this species in the Central Flyway corridor.

Quick Facts

Feature	Details
Scientific Name	Buteo lagopus
Family	Accipitridae (Raptors)
Size	20-30 inches (51-76 cm) in length, weighing approximately 1.5-5 pounds (0.7-2.3 kg)
Habitat	Open fields and grasslands
Diet	Rodents especially voles
Seasons in Oklahoma	Winter
Conservation Status	Least Concern

Identification Guide

When identifying the Rough-legged Hawk in the field, look for the feathered legs and hovers while hunting. This species measures approximately 20-30 inches (51-76 cm) in length, weighing approximately 1.5-5 pounds (0.7-2.3 kg). In the open fields and grasslands habitats typical of northwestern Oklahoma, careful observation will reveal the distinctive features that separate this species from similar birds in the area.

Physical Description

The Rough-legged Hawk presents feathered legs and hovers while hunting, making it a commanding presence in Oklahoma skies. This species belongs to the raptors group and shares the open fields and grasslands with several related species, though careful observation reveals the unique characteristics that make the Rough-legged Hawk unmistakable.

The Rough-legged Hawk feeds primarily on rodents especially voles, and observing feeding behavior can be an excellent identification tool. Watch for this species foraging in open fields and grasslands throughout the Salt Plains region and surrounding areas of the Central Flyway.

Tips for Field Identification

Males and females may differ in appearance, so familiarizing yourself with both plumages will improve your identification success rate during visits to the Central Flyway.

Key field marks to look for include:

Size and shape: 20-30 inches (51-76 cm) in length, weighing approximately 1.5-5 pounds (0.7-2.3 kg), with a build typical of raptors
Distinctive features: Feathered legs and hovers while hunting
Behavior: Watch for feeding activity in open fields and grasslands
Voice: Listen for this species' characteristic calls, which are often the first indication of its presence in dense habitat

Habitat and Range Along the Central Flyway

The Central Flyway stretches from the Arctic tundra of Canada through the Great Plains of the United States to the Gulf of Mexico and beyond into Central and South America. Oklahoma sits at a critical juncture in this migratory corridor, and the Rough-legged Hawk takes full advantage of the state's open fields and grasslands during its seasonal visits.

In northwestern Oklahoma, the Rough-legged Hawk primarily inhabits open fields and grasslands. The unique geography of the Salt Plains region, where the Great Salt Plains create a mosaic of salt flats, shallow wetlands, grasslands, and wooded riparian corridors, provides exceptional habitat diversity that supports the Rough-legged Hawk alongside hundreds of other bird species.

The Rough-legged Hawk's range along the Central Flyway extends through the heart of the Great Plains, with Oklahoma representing vital wintering grounds.

Seasonal Presence in Oklahoma

Winter transforms the Oklahoma landscape, and Rough-legged Hawks arrive from their northern breeding grounds to spend the winter in the Central Flyway region. The relatively mild winters of northwestern Oklahoma provide crucial habitat, particularly around the Salt Plains area where open fields and grasslands remain accessible even during cold snaps.

Migration Patterns

The Rough-legged Hawk's migration through the Central Flyway follows patterns that have been refined over thousands of generations. In Oklahoma, the timing of arrivals and departures varies somewhat from year to year depending on weather patterns, but generally follows predictable seasonal rhythms. The Salt Plains National Wildlife Refuge, established in 1930, has provided a consistent and protected stopover point for migrating Rough-legged Hawks throughout its history.

Diet and Feeding Behavior

The Rough-legged Hawk sustains itself on rodents especially voles, a diet well-suited to the resources available in open fields and grasslands throughout the Central Flyway. In the Salt Plains region of northwestern Oklahoma, this species has adapted its foraging strategies to take advantage of the unique combination of habitats available.

As a raptor, the Rough-legged Hawk occupies an important position in the food chain of the Central Flyway ecosystem. Its hunting strategies have evolved to be highly efficient in the open landscapes of northwestern Oklahoma, where visibility and space allow for effective pursuit of prey.

Seasonal changes in food availability influence the Rough-legged Hawk's diet throughout the year. During spring and summer, increased insect populations often supplement the diet, while fall and winter may see a greater reliance on seeds, berries, or other seasonal food sources available in the region.

Conservation Status

The Rough-legged Hawk is currently classified as Least Concern by the International Union for Conservation of Nature (IUCN), indicating a stable and healthy population across its range. In the Central Flyway, this species benefits from the protected habitats at Salt Plains National Wildlife Refuge and other conservation lands throughout northwestern Oklahoma. However, ongoing habitat management and monitoring remain important to ensure this species continues to thrive in the region.

Threats and Challenges

The primary threats facing the Rough-legged Hawk in the Central Flyway include:

Habitat loss and fragmentation: Conversion of open fields and grasslands to agricultural or developed land reduces available habitat
Climate change: Shifting weather patterns may alter the timing of migration and availability of food resources
Human disturbance: Recreational activities near sensitive habitats can disrupt feeding and nesting behaviors
Pesticide exposure: Agricultural chemicals can reduce insect prey populations and cause direct toxicity

Conservation Efforts in Oklahoma

Oklahoma's network of wildlife refuges, state parks, and conservation areas provides essential protected habitat for the Rough-legged Hawk and many other Central Flyway species. Key conservation initiatives include:

Ongoing habitat management at Salt Plains National Wildlife Refuge (580-626-4794)
Water level management to maintain optimal wetland conditions
Grassland restoration programs throughout northwestern Oklahoma
Citizen science programs including Christmas Bird Counts and breeding bird surveys
Educational programs at Great Salt Plains State Park (580-626-4731)

Best Viewing Locations

For birders hoping to observe the Rough-legged Hawk along Oklahoma's Central Flyway, these locations offer the best opportunities:

1. Salt Plains National Wildlife Refuge

The flagship birding destination of northwestern Oklahoma, Salt Plains NWR encompasses over 32,000 acres of salt flats, wetlands, and grasslands. The refuge, located along SH 64 and SH 38 north of Jet, Oklahoma, is home to 312 documented bird species and provides excellent habitat for the Rough-legged Hawk. Contact the refuge at 580-626-4794 for current conditions and viewing recommendations.

2. Fairview Area

This area provides suitable open fields and grasslands habitat for the Rough-legged Hawk and is worth exploring during winter when this species is present in the Central Flyway region. Check local conditions before visiting and respect all posted regulations to help protect wildlife habitat.

3. Alabaster Caverns State Park

4. Boiling Springs State Park

5. Great Salt Plains State Park

Adjacent to the national wildlife refuge, the state park offers additional viewing opportunities along with camping, hiking, and the famous crystal digging area. The park's diverse habitats support the Rough-legged Hawk throughout its seasonal presence. Contact the park at 580-626-4731 for visitor information.

Birding Tips for Observing the Rough-legged Hawk

Best time of day: Early morning hours typically offer the most active viewing, especially during winter months
Equipment: A quality pair of binoculars (8x42 or 10x42) is essential, and a spotting scope can be helpful for detailed observation
Patience: Allow time for the bird to exhibit natural behaviors
Respect wildlife: Maintain appropriate distances and avoid disturbing nesting or roosting birds
Record your sightings: Report observations to eBird to contribute to scientific knowledge of the Rough-legged Hawk in the Central Flyway

Related Species

Other raptors you may encounter while birding in the Central Flyway:

This guide is part of the CherPub Central Flyway Bird Guide series, covering all 312+ bird species documented at Salt Plains National Wildlife Refuge and throughout Oklahoma's Central Flyway corridor. For more information about birding in northwestern Oklahoma, visit Salt Plains NWR or contact the refuge at 580-626-4794.