World Bird List

Species factsheet
Buff-necked Ibis (Theristicus caudatus)

Order: Theristicus caudatus
Family: Ibises, Spoonbills (Threskiornithidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
caudatus n South America to the Mato Grosso (sw Brazil)
hyperorius e Bolivia to s Brazil and n Argentina
Annoncer