Harrier Female

Northern Harrier

Northern Harriers are slender, medium-sized raptors known for their distinctive flying style. They have long, fairly broad wings and a long, rounded tail. Their most striking feature is their flat, owl-like face and a small, sharply hooked bill. When flying, Northern Harriers often hold their wings in a distinctive dihedral, or V-shape, above the horizontal.
SCIENTIFIC NAME
Circus cyaneus
CLASSIFICATION
Bird
LIFE SPAN
5-16 Years
SIZE
16-20” | 0.5-1.5lbs
STATE CONSERVATION STATUS
  • State Protected
FEDERAL CONSERVATION STATUS
Least Concern
GAME STATUS
Non-Game
GAME TYPE
None
  1. Washoe
  2. Humboldt
  3. Pershing
  4. Churchill
  5. Mineral
  6. Lyon
  7. Douglas
  8. Carson City
  9. Storey
  1. Elko
  2. Lander
  3. Eureka
  4. White Pine
  1. Esmeralda
  2. Nye
  3. Lincoln
  4. Clark

Habitat & Range

The Northern Harrier breeds throughout North America from Alaska and Canadian provinces south of tundra regions south as far as Baja California, New Mexico, Texas, Kansas, and North Carolina. They are found throughout Nevada and are a staple among open, grassy, and marshy areas.

  • Agricultural Lands
  • Grasslands
  • Marsh

Threats

  • Habitat Loss
  • Pesticides

Northern Harriers exhibit distinct sexual dimorphism. Adult males are a soft gray above and whitish below, with striking black wingtips, a dark trailing edge on the wings, and a black-banded tail. Females and immature harriers are brown with black bands on their tails. Adult females have whitish undersides with brown streaks, while immatures are more buffy with less streaking.

Northern Harriers exhibit both monogamous and polygynous behaviors, with males sometimes mating with multiple females, while females are typically monogamous. Each breeding pair raises one brood per year, with 4 to 5 dull white eggs. The female incubates the eggs for about 30 to 32 days, and the young may move short distances from the nest within a week, becoming capable of flight around 30 to 35 days old.

Their diet is diverse, consisting of small mammals, reptiles, amphibians, and birds. In winter, their diet varies by region: in northern areas, they primarily feed on deer mice, house mice, shrews, rabbits, and songbirds, while in southern areas, they consume cotton rats, house mice, harvest mice, rice rats, shrews, and songbirds.

Fun Facts

Northern Harriers are the most owl-like of the hawks. They rely on both hearing and vision to hunt for prey. Their disk-shaped face and stiff facial feathers function similarly to an owl’s, helping to funnel sound to their ears for precise hearing.
Male Harrier