This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
SACC. 2006. A classification of the bird species of South America. Available at: http://www.museum.lsu.edu/~Remsen/SACCBaseline.html.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.
16 cm. A distinctive rufous arboreal furnarid with a large upturned bill. Bright orange-rufous above. Buffier below, with a white throat. Heavy bill grey, with upturned lower mandible pale flesh; small dark grey area around the eye. Chestnut iris. Similar spp. The bill is diagnostic. Voice Song is a rattle, starting quietly with sparser notes and becoming louder and higher pitched before accelerating and fading at the end; also gives single loud sharp call, sometimes in a series. Hints Sometimes accompanies mixed understorey flocks; best located by call.
Collar, N. J.; Gonzaga, L. P.; Krabbe, N.; Madroño Nieto, A.; Naranjo, L. G.; Parker, T. A.; Wege, D. C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, Cambridge, U.K.
Whitney, B. M.; Pacheco, J. F. 1994. Behavior and vocalizations of Gyalophylax and Megaxenops (Furnariidae), two little-known genera endemic to northeastern Brazil. Condor 96: 559-565.
Olmos, F. 1993. Birds of Serra da Capivara National Park in the "caatinga" of north-eastern Brazil. Bird Conservation International 3: 21-36.
da Silva, J. M. C.; Oren, D. C. 1997. Geographic variation and conservation of the Moustached Woodcreeper Xiphocolaptes falcirostris, an endemic and threatened species of north-eastern Brazil. Bird Conservation International 7: 263-274.
del Hoyo, J.; Elliott, A.; Christie, D. 2003. Handbook of the Birds of the World, vol. 8: Broadbills to Tapaculos. Lynx Edicions, Barcelona, Spain.
Further web sources of information
Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note, taxonomic treatment and IUCN Red List category may have changed since publication.
Recuento detallado de la especie tomado del libro Aves Amenazadas de las Americas, Libro Rojo de BirdLife International (BirdLife International 1992). Nota: la taxonomoa y la categora de la Lista Roja de la UICN pudo haber cambiado desde esta publicacin.
Text account compilers
Butchart, S., Ekstrom, J., Fisher, S., Harding, M., O'Brien, A.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2013) Species factsheet: Megaxenops parnaguae. Downloaded from http://www.birdlife.org on 22/05/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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|Current IUCN Red List category||Least Concern|
|Species name author||Reiser, 1905|
|Population size||Unknown mature individuals|
|Distribution size (breeding/resident)||658,000 km2|
|Links to further information|
|- Additional Information on this species|