World Bird List

Species factsheet
Olivaceous Piculet (Picumnus olivaceus)

Order: Picumnus olivaceus
Family: Woodpeckers (Picidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
dimotus e Guatemala to e Nicaragua
flavotinctus Costa Rica to nw Colombia
olivaceus n, w Colombia
eisenmanni ne Colombia and nw Venezuela
tachirensis nc Colombia and sw Venezuela
harterti sw Colombia and w Ecuador