Striped Woodcreeper (Xiphorhynchus obsoletus) [XC47977]
by Andrew Spencer from Cristalino Jungle Lodge, MT, Brazil (call)
Striped Woodcreeper (Xiphorhynchus obsoletus) [XC477068]
by Caio Brito from Sani Lodge, Sucumb\u00edos, Ecuador (song)
Subspecies
Relationships uncertain. On basis of molecular data, apparently ancestral to a morphologically variable clade that includes Buff-throated Woodcreeper (Xiphorhynchus guttatus), Cocoa Woodcreeper (Xiphorhynchus susurrans), Ivory-billed Woodcreeper (Xiphorhynchus flavigaster) and Black-striped Woodcreeper (Xiphorhynchus lachrymosus), possibly also Northern Spotted Woodcreeper (Xiphorhynchus erythropygius) and Olive-backed Woodcreeper (Xiphorhynchus triangularis). Assessment of subspecies notatus complicated by marked individual variation in coloration, and intergradation over seemingly wide area with both nominate and palliatus. Birds from R Purús drainage (possibly also R Madeira), in western Brazil, sometimes recognized as subspecies multiguttatus, but intermediate between nominate and palliatus. Validity of poorly differentiated subspecies caicarae (relative to nominate), with biogeographically unlikely range, is uncertain.
The following 4 subspecies are recognised:
notatus (Eyton, 1852) - Drainages of R Apure, upper R Orinoco, lower R Caura and upper R Negro in eastern Colombia, western and southern Venezuela and adjacent north-western Brazil; birds from lower R Negro intermediate with nominate.
caicarae Zimmer, JT & Phelps, 1955 - Middle Orinoco Valley in central Venezuela (north-western Bolívar).
palliatus (Des Murs, 1856) - Western Amazonia, both northern and south of Amazon, in south-eastern Colombia (Meta, Caquetá), eastern Ecuador, eastern Peru, western Amazonian Brazil (east to R Negro and to R Juruá) and northern Bolivia (south to northern La Paz and north-western Beni); birds from R Purús intermediate with nominate.
obsoletus (Lichtenstein, 1820) - Eastern Amazonia, in eastern Venezuela (Delta Amacuro), the Guianas and northern Brazil (lower R Negro east to Amapá and, south of Amazon, from R Madeira east to R Tocantins and south to western and northern Mato Grosso); populations in north-eastern Bolivia (north-eastern Santa Cruz) and north-eastern Venezuela (eastern Monagas) likely represent this subspecies.
BirdLife International Species Factsheet