Pied harrier

Quietly appreciated by farmers because it helps control pest populations, especially rats and locusts, in agricultural areas

Vijay Anand Ismavel


Pied harrier

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Quietly appreciated by farmers because it helps control pest populations, especially rats and locusts, in agricultural areas

Population

Found across South and Southeast Asia, from eastern India and China to Thailand, Cambodia, and Indonesia, this migratory bird is a familiar sight soaring low over wetlands and rice fields during the winter months. With its bold black-and-white plumage and light, buoyant flight, the pied harrier is often described as the “phantom of the marshes,” gliding silently above open landscapes in search of prey.

What makes the pied harrier so distinctive is its stunning contrast of colors and refined flight style. The adult male, in particular, is a study in elegance: its body is a sleek blend of black and white, with a black hood, wings, and back, set against a gleaming white underside and rump. The female and juveniles, on the other hand, wear a more cryptic coat of brown, buff, and gray, helping them blend into the tall grasses where they hunt and nest. All have long, narrow wings and an elongated tail that gives them remarkable control as they drift, tilt, and bank effortlessly over fields and marshes.

The pied harrier is part of the harrier family (Circus), known for their distinctive hunting style—low, slow, and deliberate. It flies just a few meters above the ground, wings held in a shallow “V,” scanning for movement below. Its primary diet consists of small mammals, frogs, lizards, and large insects, though it occasionally takes small birds as well. With its keen eyesight and sharp reflexes, it can detect even the faintest motion in the grass. When prey is spotted, it plunges suddenly from the air, folding its wings and striking with precision. This method of hunting—graceful yet lethal—is a hallmark of the harrier family and makes the pied harrier one of the most skillful hunters of open country.

Distribution

Country
Population est.
Status
Year
Comments
Bangladesh
2021
Bhutan
2021
Brunei
2021
Non-Breeding
Cambodia
2021
China
2021
Hong Kong
2021
Non-Breeding
India
2021
Indonesia
2021
Non-Breeding
Japan
2021
Vagrant
Korea
2021
Passage
Laos
2021
Malaysia
2021
Mongolia
2021
Myanmar
2021
Non-Breeding
Nepal
2021
North Korea
2021
Pakistan
2021
Philippines
2021
Non-Breeding
Russia
2021
Breeding
Singapore
2021
Non-Breeding
Sri Lanka
2021
Non-Breeding
Taiwan
2021
Non-Breeding
Thailand
2021
Vietnam
2021
Non-Breeding

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Herd

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No