World Bird List

Species factsheet
Chopi Blackbird (Gnorimopsar chopi)

Order: Gnorimopsar chopi
Family: Oropendolas, Orioles, Blackbirds (Icteridae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
sulcirostris ne Brazil
chopi se Bolivia to c and se Brazil, Uruguay and ne Argentina
megistus se Peru to e Bolivia
Annoncer