The noble bird his glances bent On Ráma as he made lament, And in low accents faint and weak With anguish thus began to speak: “Fierce Rávaṇ, king of giant race, Stole Sítá from thy dwelling-place.

In plain words: Jatayu looks at the grieving Rama and, in a weak voice, says that Ravana, king of the demons, stole Sita from Rama's home.