World Bird List

Species factsheet
White-barred Piculet (Picumnus cirratus)

Order: Picumnus cirratus
Family: Woodpeckers (Picidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
macconnelli ne Brazil
confusus e Roraima (n Brazil), sw Guyana and French Guiana
cirratus se Brazil and e Paraguay
pilcomayensis se Bolivia, Paraguay and n Argentina
tucumanus n Argentina
thamnophiloides se Bolivia and nw Argentina