The Acre Antshrike is a member of the antbird

Antbird

The antbirds are a large family, Thamnophilidae, of passerine birds found across subtropical and tropical Central and South America, from Mexico to Argentina. There are more than 200 species, known variously as antshrikes, antwrens, antvireos, fire-eyes, bare-eyes and bushbirds...

 family (Thamnophilidae). Its closest relatives are the Streak-backed Antshrike

Streak-backed Antshrike

The Streak-backed Antshrike is a species of bird in the Thamnophilidae family.It is found in Brazil, Guyana, and Venezuela.Its natural habitat is subtropical or tropical moist montane forests.-References:...

 and the Amazonian Antshrike

Amazonian Antshrike

The Amazonian Antshrike is a species of bird in the Thamnophilidae family, the antbirds. It occurs in the Amazon Basin of Brazil, and east to Maranhão state; also Amazonian Colombia, Ecuador, Peru, and Bolivia...

 (Whitney et al. 2004).

It was discovered in 1996 in the Acre Arch uplands in the state of Acre

Acre (state)

Acre is one of the 27 states of Brazil. It is situated in the southwest of the Northern Region, bordering Amazonas to the north, Rondônia to the east, Bolivia to the southeast and the Ucayali Region of Peru to the south and west. It occupies an area of 152,581.4 km2, being slightly smaller...

 in Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, and described as a species new to science

Bird species new to science

This article describes bird species new to science since 1900. Prior to the 20th century, and indeed into its early decades, the pace of discovery of new species was fast; during this period, with numerous collecting expeditions into species-rich areas not previously visited by western...

 in 2004.

It is found in low-growing woodland

Woodland

Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...

. Its known range

Range (biology)

In biology, the range or distribution of a species is the geographical area within which that species can be found. Within that range, dispersion is variation in local density.The term is often qualified:...

 lies within the remote Parque Nacional da Serra do Divisor in Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

 and the adjacent Parque Nacional de la Sierra del Divisor in Peru

Peru

Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

, but it is believed to be common there. It has only recently been evaluated by BirdLife International

BirdLife International

BirdLife International is a global Partnership of conservation organisations that strives to conserve birds, their habitats and global biodiversity, working with people towards sustainability in the use of natural resources...

 where it has been given a status of Least Concern

Least Concern

Least Concern is an IUCN category assigned to extant taxon or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, Near Threatened, or Conservation Dependent...

 for the 2007 Red List.