Although this story is obviously exaggerated, it may have grown from a grain of truth. Common Quail (Cotumix cotumix) migrate twice a year between Africa and Eurasia, and occasional storm-induced "fallout" could make quail appear to rain from the sky. 11:31
Only one more thing will happen before the end comes: the gospel will be preached throughout the world (14). Well, that and the abomination of desolations will stand in the holy place (15), many false Christs and false prophets will show great signs and wonders (24), the sun and moon will be darkened and the stars will fall (29), the sign of the son of Man will appear in the sky, everyone on earth will mourn, and then, finally, the great and powerful son of Man will come in all his glory (30).
Oh, and all these things will happen within the lifespan of Jesus' contemporaries (34).