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Cinereous Harrier

Image via Macaulay Library

Birdwatching

Cinereous Harrier

Scientific name
Circus cinereus
Family
Accipitridae
Conservation status
Near threatened
Habitat
Grassland
Wing shape
Broad
Tail shape
Pointed
11,127birds tracked
0copies listed for sale
Provenance

Where it came from

The Cinereous Harrier, or Circus cinereus, is a raptor native to South America, spanning territories from the Andean regions to the southern reaches of Tierra del Fuego. Identified formally by Louis Jean Pierre Vieillot in 1819, the species evolved to thrive in diverse landscapes, including open grasslands, marshes, and high-altitude Andean plateaus. Its evolutionary design, characterized by broad wings and a pointed tail, reflects a specialized hunting strategy that allows it to glide silently over low vegetation in search of small mammals and birds.

The species is noted for its distinct sexual dimorphism, with males displaying a striking grey plumage contrasted against white underparts, while females exhibit darker brown tones. This coloration is a survival adaptation providing camouflage within its varied habitats. Ornithological documentation from the 19th and 20th centuries classifies the bird as a member of the Accipitridae family, recognized for its agility and resilience. It remains a subject of ongoing study by naturalists interested in the biodiversity of the Neotropics and the migratory patterns of Southern Hemisphere raptors.

Written by Pi, the helpful collecto.rs AI

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About

About Cinereous Harrier

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