Martin Goodman at the LARB:
THE DESTRUCTION OF Jerusalem by Roman troops in 70 CE demanded a religious explanation. If God, the supreme ruler of the universe, had allowed such a disaster to be visited on his people, it must be as part of a divine plan. The author of an apocalyptic text that purports to describe the prophetic visions of Ezra, the priest and scribe of the fifth century BCE, but which must in fact have been composed in the last decades of the first century CE, envisaged divine vengeance on the Roman empire. He pictured Rome as a three-headed eagle destined for destruction during the last days that had now come upon the earth:
The Most High has looked at his times; now they have ended, and his ages have reached completion. Therefore you, eagle, will surely disappear, you and your terrifying wings, your most evil little wings, your malicious heads, your most evil talons, and your whole worthless body, so that the whole earth, freed from your violence, may be refreshed and relieved, and may hope for the judgement and mercy of him who made it.
But we have no idea how many other Jews shared in this eschatological hope. IV Ezra is preserved only through copies and translations made by Christians, among whom the text proved immensely popular, presumably in part because of their strong interest in the imminent end times, but it is not known whether the text held similar appeal for non-Christian Jews.