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Whistles used by hunters in the semi-arid region of Paraiba State, Brazil. The "Arremedo" hunting technique for capturing "mocó" (Kerodon rupestris) (left), "lambus" (Crypturellus tataupa and C. parvirostris) (middle) and "jurutis" (Leptotila verreauxi), "ribaçã" (Zenaida auriculata), and "asa branca" (Patagioenas picazuro) (right).
