World Bird List

Species factsheet
Narrow-billed Woodcreeper (Lepidocolaptes angustirostris)

Order: Lepidocolaptes angustirostris
Family: Ovenbirds (Furnariidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
griseiceps Suriname
coronatus ec Brazil
bahiae e Brazil
bivittatus n and e Bolivia to c and se Brazil
hellmayri wc Bolivia
certhiolus c Bolivia to w Paraguay and nw Argentina
angustirostris e Paraguay, sw Brazil and n Argentina
praedatus extreme s Brazil, Uruguay and n and c Argentina