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Pearled Treerunner - BirdForum Opus

Photo © by Gerald Friesen
East Andes slope, Ecuador, April, 2018
Margarornis squamiger


15–16 cm (6-6¼ in)

  • Yellowish-buff supercilium
  • Chestnut upperparts
  • Cream throat


Photo © by Steve Herrmann (Ecuadorrebel)
Milpe Bird Sanctuary, Ecuador - February, 2010

South America: found in Colombia, Venezuela, Ecuador, Peru, Bolivia



There are 3 subspecies[1]:

  • M. s. perlatus:
  • M. s. peruvianus:
  • Andes of Peru (Cajamarca to Huánuco, Junín and Cuzco)
  • M. s. squamiger:
  • Andes of south-eastern Peru (Puno) and western Bolivia (La Paz and Cochabamba)


Widespread in upper subtropical and temperate forest and woodland on both slopes.



Their diet consists mostly of arthropods. The occasionally forage alone, but more often in pairs and sometimes groups of up to eight birds.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Handbook of the Birds of the World Alive (retrieved June 2018)

Recommended Citation

External Links

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