With "Birds of Passage" Ciro Guerra, alongside co-director Cristina Gallego, continues his work as historiographer of South America. Guerra is known for his previous work, “El Abrazo de la Serpiente” (“Embrace of the serpent” in the Spanish original), in which a shaman from the Amazon teams up with scientists in searching for a sacred healing plant. This is the first time that Gallego goes behind the camera. She has produced