Buff-throated Woodcreeper © arthurgrosset.com

Sister to Cocoa Woodcreeper (Xiphorhynchus susurrans), the two treated by most recent authors as conspecific, but recently split on grounds of differences in calls and body size. Geographical patterns in songs, however, more complex than previously realized, and size differences do not correspond to species limits as presently recognized. Molecular data suggest that nominate subspecies, as well as polystictus (and poorly differentiated connectens), may be more closely related to "nanus group" of Cocoa Woodcreeper (Xiphorhynchus susurrans) than to other subspecies of Buff-throated Woodcreeper (Xiphorhynchus guttatus), rendering present species as currently recognized paraphyletic. The "eytoni group" (including vicinalis and poorly differentiated gracilirostris), traditionally recognized on basis of plumage, and sometimes considered a separate species, also distinct vocally. Molecular data suggest, however, that "eytoni group" and "guttatoides group" (including dorbignyanus) form a monophyletic clade, a hypothesis supported by fact that vicinalis is phenotypically and genetically intermediate between guttatoides and eytoni.

The following 8 subspecies are recognised:

• polystictus (Salvin & Godman, 1883)   -  R Orinoco drainage in eastern Colombia (eastern Vichada), southern and eastern Venezuela (northern Amazonas, Bolí­var and south-western Anzoátegui east to Delta Amacuro), extreme northern Brazil (Roraima), Guyana and Surinam; populations in French Guiana may instead represent connectens.
• guttatoides (Lafresnaye, 1850)   -  Western Amazonia, both northern and south of Amazon, from south-eastern Colombia (southern from Meta and Guainí­a), southern Venezuela (western and southern Amazonas) and eastern Ecuador, south to eastern and south-eastern Peru, north-western Brazil (east to R Negro and R Madeira, south to northern Mato Grosso); birds in northern Bolivia show signs of intergradation with dorbignyanus. Considered by some authors to be a distinct species, Lafresnaye's Woodcreeper (Xiphorhynchus guttatoides).
• connectens Todd, 1948   -  North-eastern Amazonian Brazil, along northern bank of Amazon from east of Manaus east to Amapá.
• vicinalis Todd, 1948   -  Southern Amazonian Brazil, south of Amazon, from R Madeira east to R Tapajós (where possibly on both banks); specimens from sites north of Amazon likely either mislabeled or misidentified.
• eytoni (Sclater, PL, 1854)   -  South-eastern Amazonian Brazil, south of Amazon, from R Tapajós east to western Maranhío. Considered by some authors to be a distinct species, Dusky-billed Woodcreeper (Xiphorhynchus eytoni).
• gracilirostris Pinto & Camargo, 1957   -  Serra do Baturité, in Ceará (north-eastern Brazil).
• dorbignyanus (Pucheran & Lafresnaye, 1850)   -  Central South America, south of Amazon Basin, from northern and eastern Bolivia (La Paz, Beni, Cochabamba, Santa Cruz) east to east-central Brazil (east to central Goiás).
• guttatus (Lichtenstein, 1820)   -  Coastal eastern Brazil from Paraí­ba south to Espí­rito Santo, rarely to northern Rio de Janeiro.

Files:

More Information

BirdLife International For more information about the Buff-throated Woodcreeper see... BirdLife International Species Factsheet. Articles about the Buff-throated Woodcreeper If you would like to read any articles about the Buff-throated Woodcreeper... Show Articles (0) No Pictures of Buff-throated Woodcreeper If Birdpedia has no pictures of Buff-throated Woodcreeper or you would like to see more, then try the following...       From BING (7) No Videos of Buff-throated Woodcreeper If Birdpedia has no videos of Buff-throated Woodcreeper or you would like to see more, then try the following..       From BING (0)