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Xingu Scale-backed Antbird - BirdForum Opus

Photo by Luiz
Cristalino Jungle Lodge, Mato Grosso, Brazil, September 2014
Willisornis vidua


12–13 cm

  • Dark grey head
  • Dark grey upper parts with white feather edges
  • Black tail with central white spot


South America: found in eastern Amazonian Brazil south of Amazon river.


Was formerly included in Scale-backed Antbird together with Common Scale-backed Antbird.

Formerly placed in genus Hylophylax.


Two subspecies recognized[1]:

  • W. v. nigrigula in south-central Amazonian Brazil, from the east bank for the Rio Canumã to both banks of Rio Tapajos, and the east bank of the Rio Teles Pires
  • W. v. vidua in south-east Amazonian Brazil, south of River Amazon (River Xingú to western Maranhão)


Moist lowland forests.



Follows army ant swarms, but generally not found near the center of the swarm


They build cup shaped nests.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. SACC proposal no 286 and proposal no 340 to change genus of this species
  3. Birdforum thread discussing splitting Scale-backed Antbird

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