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Yellow-winged Blackbird

From Opus

MalePhoto © by JamfaracoPassagem, Laguna-SC/ Brazil, January 2007
Photo © by Jamfaraco
Passagem, Laguna-SC/ Brazil, January 2007
Agelasticus thilius


[edit] Identification

FemalePhoto © by Luis RBatuco Wetland,Santiago, Chile, August 2016
Photo © by Luis R
Batuco Wetland,Santiago, Chile, August 2016

17·9 cm (7 in)

  • Black overall plumage
  • Yellow shoulders and underwing coverts


  • Heavily streaked brownish plumage
  • Pale supercilium
  • Yellow shoulder patch

[edit] Distribution

South America: found in South Brazil, Uruguay, central Argentina, central Chile, Bolivia and Peru.

[edit] Taxonomy

It has been placed in Chrysomus or in Agelasticus.

[edit] Subspecies

Immature, probably malePhoto © by nkgrayParque Bicentenario, Santiago, Chile, June 2013
Immature, probably male
Photo © by nkgray
Parque Bicentenario, Santiago, Chile, June 2013

There are 3 subspecies[1]:

  • A. t. alticola:
Andes of south-eastern Peru (Cuzco) to north-western Bolivia
  • A. t. thilius:
  • A. t. petersii:

[edit] Habitat

Swamps, intertidal marshes, pastureland always close to water.

[edit] Behaviour

[edit] Diet

Female, subspecies thiliusPhoto © by Luis RSanto Domingo, Valparaiso, Chile, June 2018
Female, subspecies thilius
Photo © by Luis R
Santo Domingo, Valparaiso, Chile, June 2018

Their diet consists of insects and seeds.

[edit] Breeding

Monogamous; colonial breeders. The female builds the nest in tall grass close to water. The clutch consists of 2-4 eggs which are incubated by the female for 13 days.

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from
  2. Handbook of the Birds of the World Alive (retrieved September 2016)

[edit] External Links


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