Lucas Bustamante / Spix's guans (Penelope jacquacu) on clay lick, Tambopata National Reserve, Madre de Dios, Peru.
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Bernard Castelein / Razor-billed curassow, (Mitu tuberosum ) Pampas del Yacuma Protected Area, Bolivia
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Claudio Contreras / Plain chachalaca (Ortalis vetula), Catemaco Lake, Los Tuxtlas Biosphere Reserve, Mexico, July
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Claudio Contreras / Plain chachalaca (Ortalis vetula), Catemaco Lake, Los Tuxtlas Biosphere Reserve, Mexico, July
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Paul Hobson / Plain chachalaca (Ortalis vetula) perched with open beak. Rancho Naturalista, Cartago, Costa Rica.
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Paul Hobson / Plain chachalaca (Ortalis vetula), two in fork of tree. Rancho Naturalista, Cartago, Costa Rica.
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Thomas Marent / Speckled Chachalaca (Ortalis guttata), Valle del Cauca, Colombia
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Alex Hyde / Blue-throated Piping-Guan (Pipile cumanensis) eating riverside clay along the banks of the Manu River, Manu Biosphere Reserve, Amazonia, Peru. November.
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David Perpinan / Two Chaco chachalacas (Ortalis canicollis) fighting, Pantanal, Mato Grosso do Sul, Brazil.
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David Perpinan / Two Chaco chachalacas (Ortalis canicollis) fighting, Pantanal, Mato Grosso do Sul, Brazil.
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David Perpinan / Chaco chachalaca (Ortalis canicollis) perched in a tree, looking around, Pantanal, Mato Grosso do Sul, Brazil.
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David Perpinan / Chaco chachalaca (Ortalis canicollis) vocalising in a tree, Pantanal, Brazil, October.