The recurvebills are two species of Furnariid bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

s from the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Simoxenops. They are restricted to humid forests in the South American countries of Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

, 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....

 and 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...

. Their common name

Common name

A common name of a taxon or organism is a name in general use within a community; it is often contrasted with the scientific name for the same organism...

 refers to the peculiar bill-shape, which, at least in the case of the larger-billed Peruvian Recurvebill, is an adaption for manipulating bamboo

Bamboo

Bamboo is a group of perennial evergreens in the true grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae. Giant bamboos are the largest members of the grass family....

 stems. Both species are overall rufescent brown.

Species

• Peruvian Recurvebill
  Peruvian Recurvebill
  The Peruvian Recurvebill is a species of bird in the Furnariidae family. It is found in Bolivia, Brazil, and Peru.Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss....
  
  , Simoxenops ucayalae
• Bolivian Recurvebill
  Bolivian Recurvebill
  The Bolivian Recurvebill is a bird species in the family Furnariidae. It is endemic to Bolivia.Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist montane forests. It is becoming rare due to habitat loss.It was formerly classified as a Vulnerable species...
  
  , Simoxenops striatus