La Isla de los Pájaros (legendary / literary instances)

The label "La Isla de los Pájaros" in the supplied research notes refers not to a single empirically documented geographic feature but to a recurring island motif in two different source contexts. In a Spanish folktale associated with Valverde de Lucerna and the Lago de Sanabria (Source 2), a mysterious pilgrim curses an inhospitable village and causes a flood that drowns the valley; only a small island "where the oven stood" remains above the waters. That account frames the island as a cosmogonic trace of divine or magical punishment and functions as a moral explanatory legend for a lake's origin. In a separate contemporary literary piece (Gustavo Fontán's story, Source 4), an island on the Paraná River is depicted as the site of an abandoned homestead where a returning man, Gustavo, experiences an intense re-encounter with his dead: the presence of the visitor seems to "corporize" past domestic elements (huts, tables, animals, canoes), producing quasi-paranormal manifestations tied to memory and mourning. This is presented as literary description rather than a documented eyewitness case. The two contexts (folkloric lake-creation legend in Spain and a fictional river-island narrative set on the Paraná) are distinct; no provided source ties these motifs to Venezuela, Isla de Aves, or a place called "Diablo Island." Because the materials are folkloric and literary, there are no coordinates, formal ownership records, or contemporary investigative reports cited. Explanatory framings in the sources are moral/legendary causation for the flood tale and psychogeographic or memory-based explanation in the literary text.