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Circus buffoni

Long-winged Harrier

  • Order: Accipitriformes
  • Family: Accipitridae


Circus buffoni

Rio Grande do Sul, Brazil; 8 May 2010 © Claudio Dias Timm

The Long-winged Harrier is a striking, lanky raptor of South American grasslands. The male has largely black upperparts, a gray tail and gray remiges boldly banded with black, and white facial markings. The light morph has a white belly, while the dark morph is entirely black below. Females are similarly-patterned, with much of the black replaced by brown. This species is found in wet fields, marshes, grasslands, and savanna where it courses low over the grass and drops to the ground to capture mammals, reptiles, amphibians, and birds. Like other harriers, it nests on the ground in grasses. It ranges from central Argentina, where birds are present only during the summer breeding season, through eastern Brazil to the Guianas, Venezuela, and Colombia. Its status in the northern parts of the range is unclear, but breeding has been documented on Trinidad.


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Recommended Citation

. 2010. Long-winged Harrier (Circus buffoni), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online:

This map is based on the maps available from the NatureServe InfoNatura website. The data for these maps are provided by NatureServe in collaboration with Robert Ridgely, James Zook, The Nature Conservancy - Migratory Bird Program, Conservation International - CABS, World Wildlife Fund - US, and Environment Canada - WILDSPACE.

  • Migration/Movement:Austral Migrant
  • Primary Habitat:Low, seasonally wet grassland
  • Foraging Strata:Terrestrial
  • Foraging Behavior:High dive
  • Diet:Mammals
  • Sociality:
  • Mating System:
  • Nest Form:
  • Clutch: -
  • IUCN Status:Least Concern