Amazonian Antpitta
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The Amazonian antpitta (''Myrmothera berlepschi'') is a species of
bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
in the family
Grallariidae Grallariidae is a family of smallish suboscine passerine birds of subtropical and tropical Central and South America known as antpittas. They are between long, and are related to the antbirds, Thamnophilidae, and gnateaters, Conopophagidae. T ...
. It is found in
Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...
,
Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
, and
Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
.


Taxonomy and systematics

The Amazonian antpitta was originally described in 1903 as ''Grallaria berlepschi''. It was later transferred to genus ''Hylopezus'' and still later to ''Myrmothera''.Lowery, G.H., and J.P. O’Neill. 1969. A new species of antpitta from Peru and a revision of the subfamily Grallariinae. Auk 86: 1-12.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 27 July 2024. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 28, 2024 The Amazonian antpitta has two subspecies, the
nominate Nomination is part of the process of selecting a candidate for either election to a public office, or the bestowing of an honor or award. A collection of nominees narrowed from the full list of candidates is a short list. Political office In th ...
''M. b. berlepschi'' (
Hellmayr Carl Eduard Hellmayr (29 January 1878 – 24 February 1944) was an Austrian ornithologist. Biography Hellmayr was born in Vienna and studied at the University of Vienna, although he did not complete his degree. After his studies he worked in Vie ...
, 1903), and ''M. b. yessupi'' ( Carriker, 1930).


Description

The Amazonian antpitta is long; males weigh and females . The sexes have the same plumage. Adults of the nominate subspecies have a buffy loral spot and pinkish red bare skin around their eye. Their crown, nape, ear
coverts A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are small feathers behind t ...
, upperparts, and tail are olive-brown. Their wings are mostly olive-brown with olive-buff outer webs on the
primaries Primary elections or primaries are elections held to determine which candidates will run in an upcoming general election. In a partisan primary, a political party selects a candidate. Depending on the state and/or party, there may be an "open pri ...
. Their throat is white. Their breast and sides are buffy ochraceous with coarse dusky streaks, their belly white, and their flanks and crissum orange-rufous. Subspecies ''M. b. yessupi'' has slightly browner and darker upperparts and slightly deeper buff underparts than the nominate. Both subspecies have a brown iris, a dusky gray
maxilla In vertebrates, the maxilla (: maxillae ) is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxil ...
, a pinkish white
mandible In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i ...
with a dusky tip, and bright pink legs and feet.Krabbe, N. and T. S. Schulenberg (2021). Amazonian Antpitta (''Myrmothera berlepschi''), version 1.1. 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.amaant1.01.1 retrieved September 15, 2024Schulenberg, 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 181


Distribution and habitat

As its English name implies, the Amazonian antpitta is a bird of the
Amazon Basin The Amazon basin is the part of South America drained by the Amazon River and its tributary, tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries ...
. The nominate subspecies has the larger range of the two. It is found in Brazil from the upper
Purus River The Purus River (Portuguese: ''Rio Purus''; Spanish: ''Río Purús'') is a tributary of the Amazon River in South America. Its drainage basin is , and the mean annual discharge is . The river shares its name with the Alto Purús National Park a ...
northeast to
Pará Pará () is a Federative units of Brazil, state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins (state), Tocantins, Mato Grosso, Amazonas (Brazilian st ...
where it occurs between the
Tapajós The Tapajós ( ) is a river in Brazil. It runs through the Amazon Rainforest and is a major tributary of the Amazon River. When combined with the Juruena River, the Tapajós is approximately long. Prior to a drastic increase in illegal gold mi ...
and Xingu rivers, and south and west into northern
Mato Grosso Mato Grosso ( – ) is one of the states of Brazil, the List of Brazilian states by area, third largest by area, located in the Central-West Region, Brazil, Central-West region. The state has 1.66% of the Brazilian population and is responsible ...
state, southeastern Peru, and north-central Bolivia. Subspecies ''M. b. yessupi'' is found from the southern part of Peru's
Department of Loreto Loreto () is Peru's northernmost department and region. Covering almost one-third of Peru's territory, Loreto is by far the nation's largest department, slightly smaller than Japan; it is also one of the most sparsely populated regions due to ...
south through
Ucayali The Ucayali River (, ) is the main headstream of the Amazon River. It rises about north of Lake Titicaca, in the Arequipa region of Peru and becomes the Amazon at the confluence of the Marañón close to Nauta city. The city of Pucallpa is lo ...
and most of Madre de Dios departments and east slightly into western Brazil. The species inhabits the floor and dense undergrowth of
riparian forest A riparian forest or riparian woodland is a forested or wooded area of land adjacent to a body of water such as a river, stream, pond, lake, marshland, estuary, canal, Sink (geography), sink, or reservoir. Due to the broad nature of the definitio ...
, mature
secondary forest A secondary forest (or second-growth forest) is a forest or woodland area which has regenerated through largely natural processes after human-caused Disturbance (ecology), disturbances, such as Logging, timber harvest or agriculture clearing, or ...
, and the edges of
primary forest An old-growth forest or primary forest is a forest that has developed over a long period of time without Disturbance (ecology), disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organizati ...
. In elevation it mostly occurs below but reaches locally in Peru.


Behavior


Movement

The Amazonian antpitta is believed to be a year-round resident throughout its range.


Feeding

The Amazonian antpitta's diet has not been detailed but is known to include insects. It is usually seen singly as it forages while running, hopping, and walking on the forest floor and downed logs.


Breeding

Nothing is known about the Amazonian antpitta's breeding biology.


Vocalization

The Amazonian antpitta's song is "a series of 3-5 deep, hollow hoots: ''coop coop coop''". Its call is "a rapid series of hooting notes: ''KEW'hoo'hoo'hoo'hoo''".


Status

The
IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...
has assessed the Amazonian antpitta as being of Least Concern. It has a large range; its population size is not known and is believed to be stable. No immediate threats have been identified. It is considered generally uncommon and rare to uncommon in Peru. It occurs in several protected areas.


References

{{Taxonbar, from=Q631001 Amazonian antpitta Birds of Southern Amazonia Amazonian antpitta Amazonian antpitta Taxonomy articles created by Polbot