A poem in this language contrasts the owl’s “taciturn flight” with the “deceptive plumage” of the title bird. This language was used to write both “Twist the Neck of the Swan” and a poem that addresses a (10[1])“future invader” that “still prays to Jesus Christ and still speaks [this language].” The title figure is addressed as a “professor of energy” and “an Alexander-Nebuchadnezzar” in that poem in this language. This language’s modernist poetry movement was kickstarted by the author of the poem “To Roosevelt.” The speaker describes working “in July as in January” to “cultivate a white rose” in a poem in this language by an author whose collection Simple Verses includes the patriotic song “Guantanamera.” For 10 points, name this language used by poets Rubén Darío and José Martí. ■END■