Rufous-Fronted Thornbird; Espinera de frente rojiza (Arg, Bol), Joao-de-pau (Br).
Forehead and fore-crown rufous. Whitish brow. Brown upperparts, wings and tail. Underparts whitish-buff.
has an introductory invitation 'ti ti ti...', then a duetted long and loud 'titititi tee t