World Bird List

Species factsheet
Campo Flicker (Colaptes campestris)

Order: Colaptes campestris
Family: Woodpeckers (Picidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
campestris c Suriname and nc and e Brazil to Bolivia and c Paraguay
campestroides c and s Paraguay to se Brazil, Uruguay and e Argentina