Other Scientific Names
Xiphorhynchus kienerii [BirdLife International (2008)], Xiphorhynchus necopinus [BirdLife International (2004)], Xiphorhynchus necopinus [Sibley and Monroe (1990, 1993)], Xiphorhynchus necopinus [Stotz et al. (1996)]
Along Amazon R from extreme south-eastern Colombia and north-eastern Peru eastern in Brazil to near mouth of R Tapajós, also variable distance up that and other major tributaries (Solimíµes, Negro, Juruá, Purús, Madeira) south to north-western Mato Grosso; possibly also along R Napo to north-eastern Ecuador.
 
Population
Estimated population is unknown (2010).
Zimmer's Woodcreeper (Dendroplex kienerii) [XC144818]
by Peter Boesman from Isla Islandia, Loreto, Peru (song)
Zimmer's Woodcreeper (Dendroplex kienerii) [XC270680]
by JAYRSON ARAUJO DE OLIVEIRA from R\u2019o Yanayacu area near Muyuna lodge, Loreto, Peru (song)
Subspecies
No subspecies.
The sister-species of Straight-billed Woodcreeper (Dendroplex picus). Recent analysis of molecular data suggested that these species are distantly related to present congeners, and closer to Lepidocolaptes and Campylorhamphus. Treatment as a full species distinct from Straight-billed Woodcreeper (Dendroplex picus) supported by vocal, morphological, ecological and molecular data. Described taxon "Dendroplex necopinus" recently shown to be a synonym of Dendrornis [= Xiphorhynchus] Kienerii, the name of which has priority.