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White-fringed Antwren - BirdForum Opus

Subspecies rufiventris
Photo © by max1
Los LLanos, N.E Colombia, February 2016
Formicivora grisea

Identification

Male, ssp tobagensis
Photo © by DABS
Chacachacare, Trinidad, 29 January 2018

12–13 cm (4¾-5 in)

  • Grey-brown crown and upperparts
  • Black wings, tail, lower face and underparts
  • 2 white wing bars
  • White stripe running from above the eye down the sides of the breast and flanks
  • White tipped tail feathers

Female

  • Upperparts similar to the male

However, females of the southern populations are orange below and have an orange supercilium

Distribution

South America: found in Colombia, Venezuela, Tobago, Guyana, Suriname, French Guiana and Brazil.

Taxonomy

Sometimes split in Southern White-fringed Antwren (Formicivora grisea) and Northern White-fringed Antwren (Formicivora intermedia)

Subspecies

Subspecies grisea'
Photo © by Rick and Elis
NE Brazil, October 2011

There are 9 subspecies[1]:
Northern

  • F. g. alticincta: Pearl Islands (Bay of Panama)
  • F. g. hondae: North-western Colombia
  • F. g. fumosa: Northern base of Andes of north-eastern Colombia and western Venezuela
  • F. g. intermedia: Northern Colombia, north-western Venezuela, Margarita Island and Chacachacare Island
  • F. g. tobagensis: Tobago
  • F. g. orenocensis: Southern Venezuela south of River Orinoco (Bolívar and extreme northern Amazonas)

Southern

  • F. g. rufiventris: Extreme eastern Colombia and southern Venezuela (western Amazonas)
  • F. g. grisea: Guyana, coastal Suriname, French Guiana, northern and eastern Brazil

Habitat

Female, ssp tobagensis
Photo © by Robert L Jarvis
Tobago, May 2012

Occurs in the under and mid-storey of lowland secondary woodland, scrubby bushes on white sandy soils and restinga habitat.

Behaviour

Diet

The diet consists of a variety of small insects, spiders and other arthropods gleaned from undergrowth, twigs and foliage.

Breeding

They construct a grassy hammock nest which is placed low in a tree or shrub. The clutch contains 2 creamy white eggs, with purple markings; they are incubated by both adults.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. Handbook of the Birds of the World Alive (retrieved March 2016)

Recommended Citation

External Links


Use Formicivora intermedia to

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