Striated antbird

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Species of bird

title: "Striated antbird" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["drymophila", "birds-of-southern-amazonia", "birds-described-in-1906", "taxa-named-by-carl-eduard-hellmayr", "taxonomy-articles-created-by-polbot"] description: "Species of bird" topic_path: "general/drymophila" source: "https://en.wikipedia.org/wiki/Striated_antbird" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Species of bird ::

| name = Striated antbird | image = Drymophila devillei - Striated Antbird; Madre de Dios, Peru 2.jpg | status = LC | status_system = IUCN3.1 | status_ref = | genus = Drymophila | species = devillei | authority = (Ménégaux & Hellmayr, 1906) | range_map = Drymophila devillei map.svg | subdivision_ranks = Subspecies | subdivision = See text

The striated antbird (Drymophila devillei) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru.

Taxonomy and systematics

The striated antbird has two subspecies, the nominate D. d. devillei (Ménégaux & Hellmayr, 1906) and D. d. subochracea (Chapman, 1921). Subspecies D. d. subochracea has sometimes been called the "Xingu antbird", which can cause it to be confused with the Xingu scale-backed antbird (Willisornis vidua). The striated antbird and the East Andean antbird are sister species.

Description

The striated antbird is 13 to long and weighs 10 to. Adult males of the nominate subspecies have a black crown and back with thin white streaks and a large white patch between the scapulars. Their rump is orangish buff. Their flight feathers are slate gray with cinnamon edges and their wing coverts black with white tips. Their tail is black with wide white tips to the feathers and large white spots on the innermost pair. Their face, throat, and underparts are white with bold black streaks on the face, sides of the neck, and breast. Females have the same pattern but different colors than males. Their upperparts have buff rather than white streaks; their underparts are pale buff with thin black streaks on the breast. Juveniles have olive-gray upperparts and buff-tinged underparts with an olive-gray band on the breast. Subadult males resemble adult females. Both sexes of subspecies D. d. subochracea have ochraceous buff underparts that are darker on the breast and flanks. Females have darker ochraceous streaks on their upperparts than the nominate. Adults of both sexes of both subspecies have a brown iris, a black maxilla, a gray to blue-gray mandible, and blue-gray legs and feet.

Distribution and habitat

The nominate subspecies of the striated antbird has a disjunct distribution. It occurs locally within a thin band from Meta Department in southeastern Colombia into northern Ecuador's Napo Province. It separately occurs in a larger area from southeastern Peru south into Bolivia as far as Cochabamba Department and east into Brazil to the Rio Madeira. Subspecies D. d. subochracea is found in Brazil south of the Amazon and east of the rios Madeira and Mamoré south into northeastern Bolivia's Santa Cruz Department. The species inhabits the understorey of humid evergreen forest where it is almost entirely found in stands of Guadua bamboo. In elevation it reaches 1000 m in Brazil and 1300 m in Peru. In Ecuador it occurs between 300 and and in Colombia between 300 and.

Behavior

Movement

The striated antbird is believed to be a year-round resident throughout its range.

Feeding

The striated antbird's diet is not known in detail; it feeds primarily on insects (with a possible preference for caterpillars) and probably also on spiders. It typically forages in pairs or in family groups, feeding in the crowns of bamboo thickets usually up to about 7 m above the ground though sometimes as high as 20 m. It much of its range it regularly joins mixed-species feeding flocks that pass through its territory. However, it is not known to do so in Colombia and data from Ecuador are lacking.

Breeding

Except for a sighting of a female entering a dome-shaped nest in bamboo, the striated antbird's breeding biology is unknown.

Vocalization

The striated antbird's song is "2-parted, first several harsh, buzzing notes followed by an accelerating series of peeping whistles: chewDJZZ-DJAA-DJAA tew-tew-ti-ti-titutututututu". Its call is "a paired series of descending mewing whistles: pew-pew".

Status

The IUCN has assessed the striated antbird as being of Least Concern. It has a very large range; its population size is not known and is believed to be decreasing. No immediate threats have been identified. It is considered rare in Colombia and Ecuador and locally fairly common in Peru. "Human activity has little direct effect on the Striated Antbird, other than the local effects of habitat destruction."

References

Range in Amazon South America

The striated antbird has one large continuous range in the Amazon Basin's southwest as well as the south-central area in the countries of southeastern Peru, northwestern Bolivia and Brazil. The range is bifurcated in Bolivia, with the northwestern birds in the headwater river basins of the Madeira River of Brazil's Amazonas state, and the eastern Bolivian birds in the headwaters of the Guaporé River, the Bolivian-Brazilian border river flowing westward into the Madeira. An extension of the western Bolivian range reaches southeastward into central Bolivia.

A disjunct population of the striated antbird, is in a strip, 100 km wide by 400 km in northern Ecuador, and extreme southwestern Colombia.

The southern tributary rivers to the Amazon that are in the species' range are the Madeira River and the Purús and Juruá Rivers to the west. The eastward limit of the range is the Tapajós and its headwaters bordering the Cerrado's northwest limits. --

References

  1. BirdLife International. (2018). "Striated Antbird ''Drymophila devillei''".
  2. (January 2024). "Antbirds".
  3. Some authors have suggested that the subspecies deserve to be treated as full species.Schulenberg, T. S. and G. M. Kirwan (2020). Striated Antbird (''Drymophila devillei''), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.strant2.01 retrieved 19 June 2024
  4. Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, G. Del-Rio, A. Jaramillo, D. F. Lane, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 4 March 2024. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved 5 March 2024
  5. van Perlo, Ber. (2009). "A Field Guide to the Birds of Brazil". Oxford University Press.
  6. Ridgely, Robert S.. (2001). "The Birds of Ecuador: Field Guide". Cornell University Press.
  7. "Field Guide to the Birds of Colombia". Fundación ProAves. (2010)
  8. Schulenberg, T.S., D.F. Stotz, D.F. Lane, J.P. O'Neill, and T.A. Parker III. 2010. ''Birds of Peru''. Revised and updated edition. Princeton University Press, Princeton, New Jersey. Plate 168.

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