White-collared foliage-gleaner

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White-collared foliage-gleaner
Anabazenops fuscus - White-collared Foliage-gleaner.jpg
at Intervales State Park, São Paulo State, Brazil
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Furnariidae
Genus: Anabazenops
Species:
A. fuscus
Binomial name
Anabazenops fuscus
(Vieillot, 1816)
Anabazenops fuscus map.svg

The white-collared foliage-gleaner (Anabazenops fuscus) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is endemic to eastern Brazil. [2]

Contents

Taxonomy and systematics

The white-collared foliage-gleaner shares its genus with the bamboo foliage-gleaner (A. dorsalis). It is monotypic. [2]

Description

The white-collared foliage-gleaner is about 20 cm (7.9 in) long. It has a large wedge-shaped bill. The sexes' plumages are alike. Adults have a well-defined whitish supercilium, grayish white lores, and a white malar area on an otherwise dark brown face. Their crown is a rich dark brown with a faint scalloped appearance. Their throat is white and their entire neck is circled with a wide white band. Their back and rump are a lighter brown than the crown and their uppertail coverts and tail are dark rufous. Their wings are the same brown as the back with a bright yellowish brown bend. Their upper breast is grayish buff with a tawny tinge that becomes a darker tawny-brownish lower breast and belly. Their flanks and undertail coverts are darker and browner than the breast and belly. Their iris is dark brown or dark reddish brown, their maxilla dusky brown with a pale horn edge, their mandible pale horn or pale gray, and their legs and feet olive-gray, brownish gray, or dark olive-brown. Juveniles are similar to adults with a tawny-buff tinge to the supercilium and underparts. [3] [4]

Distribution and habitat

The white-collared foliage-gleaner is found in southeastern Brazil from Bahia and Minas Gerais south into Santa Catarina. It inhabits montane evergreen forest, both primary and secondary, and is closely associated with large thickets of bamboo. In elevation it ranges between 350 and 1,200 m (1,100 and 3,900 ft). [3] [4]

Behavior

Movement

The white-collared foliage-gleaner is a year-round resident throughout its range. [3]

Feeding

The white-collared foliage-gleaner feeds on arthropods. It usually forages in pairs and will occasionally join mixed-species feeding flocks. It forages mostly in the forest's middle levels; it will forage in the understory but only rarely does so on the ground. It acrobatically climbs vertical stems and gleans and probes for prey on them and among green and dead leaves. Much of its feeding is on bamboo. [3]

Breeding

The white-collared foliage-gleaner is assumed to be monogamous. It nests in a natural cavity in a branch. Nothing else is known about its breeding biology. [3]

Vocalization

The white-collared foliage-gleaner's song has been described as a "high, musical, slightly lowered 'djepdjep---' " [4] and as "low-pitched, evenly spaced 'tchook' notes...becoming louder after first few notes [3] . It also makes a "distinctive high-pitched, squeaky 'chek, jééurr-jééurr-jééurr-jééurr-jééurr'...and [a] hoarse, syncopated 'wrr-jek, wrjejek, wrrjejek' ". Its alarm call is "a piercing 'ghéé-eh' ". [3]

Status

The IUCN originally assessed the white-collared foliage-gleaner as Near Threatened but since 2004 has classed it as being of Least Concern. It has a somewhat limited range and an unknown population size that is believed to be decreasing. No immediate threats have been identified. [1] It is considered fairly common and occurs in several protected areas. However, "[e]xtensive deforestation within its relatively small range has dramatically reduced [the] area of available habitat". [3]

Related Research Articles

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<span class="mw-page-title-main">Montane foliage-gleaner</span> Species of bird found in South America

The montane foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.

<span class="mw-page-title-main">Bamboo foliage-gleaner</span> Species of bird

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<span class="mw-page-title-main">Olive-backed foliage-gleaner</span> Species of bird

The olive-backed foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay.

<span class="mw-page-title-main">White-eyed foliage-gleaner</span> Species of bird

The white-eyed foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Brazil, and Paraguay.

<span class="mw-page-title-main">Brown-rumped foliage-gleaner</span> Species of bird

The brown-rumped foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru.

<span class="mw-page-title-main">Ochre-throated foliage-gleaner</span> Species of bird

The ochre-throated foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Guatemala, Honduras, Panama, and every mainland South American country except Argentina, Chile, Paraguay, and Uruguay.

<span class="mw-page-title-main">Tepui foliage-gleaner</span> Species of bird

The tepui foliage-gleaner, also known as the white-throated foliage-gleaner, is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Brazil, Guyana and Venezuela.

<span class="mw-page-title-main">Rufous-rumped foliage-gleaner</span> Species of bird

The rufous-rumped foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, and Suriname.

<span class="mw-page-title-main">Chestnut-winged foliage-gleaner</span> Species of bird

The chestnut-winged foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.

<span class="mw-page-title-main">Slaty-winged foliage-gleaner</span> Species of bird

The slaty-winged foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Colombia, Ecuador, and Panama.

<span class="mw-page-title-main">Ochre-breasted foliage-gleaner</span> Species of bird

The ochre-breasted foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Brazil, and Paraguay.

<span class="mw-page-title-main">Rufous-tailed foliage-gleaner</span> Species of bird

The rufous-tailed foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, Venezuela, and possibly French Guiana.

<span class="mw-page-title-main">Buff-fronted foliage-gleaner</span> Species of bird

The buff-fronted foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela.

<span class="mw-page-title-main">Peruvian recurvebill</span> Species of bird

The Peruvian recurvebill is a Near Threatened species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil and Peru.

<span class="mw-page-title-main">Rufous-necked foliage-gleaner</span> Species of bird

The rufous-necked foliage-gleaner is a Vulnerable species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Ecuador and Peru.

<span class="mw-page-title-main">Buff-browed foliage-gleaner</span> Species of bird

The buff-browed foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Brazil, Ecuador, Paraguay, Peru, and Uruguay.

<span class="mw-page-title-main">Lineated foliage-gleaner</span> Species of bird

The lineated foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela.

<span class="mw-page-title-main">Pernambuco foliage-gleaner</span> Species of bird

The Pernambuco foliage-gleaner is an Endangered species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is endemic to northeastern Brazil.

<span class="mw-page-title-main">Para foliage-gleaner</span> Species of bird

The Para foliage-gleaner is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is endemic to Brazil.

References

  1. 1 2 BirdLife International (2016). "White-collared Foliage-gleaner Anabazenops fuscus". IUCN Red List of Threatened Species . 2016: e.T22702881A93893640. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22702881A93893640.en . Retrieved 26 August 2023.
  2. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2023). "Ovenbirds, woodcreepers". IOC World Bird List. v 13.2. Retrieved July 31, 2023.
  3. 1 2 3 4 5 6 7 8 Remsen, Jr., J. V. (2020). White-collared Foliage-gleaner (Anabazenops fuscus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.wcfgle1.01 retrieved August 26, 2023
  4. 1 2 3 van Perlo, Ber (2009). A Field Guide to the Birds of Brazil. New York: Oxford University Press. p. 222. ISBN   978-0-19-530155-7.