Here is another example of the Great Antshrikes (Taraba major) call, recorded a week earlier at La Selva (Costa Rica). Antshrikes are difficult to tell apart by voice - best to rely on a visual ID of these guys!.
A pair of Great Antshrikes (Taraba major) call to each other at the El Pizote, near Puerto Viejo de Talamanca (Costa Rica), 6/21/99. Listen for the characteristic (but not always present) raspy finish to the "song".