From the announcement:

Wanderer, the call which used to herald the dawn instead shook the ground this fated day. Nothing could stop the thunderous clawed talons that razed everything in its path.

We fled on foot, abandoning all that couldn't be carried, leaving with only our lives. Tall as a mountain and angry as castrated Khazra, only a fool would stand in its way! We’ve seen the beast re-appear every few hours; it’s flown its cavernous coop and is consumed with carnage.

Nothing can stand in its path. Towns, buildings, roads, if it can be crossed it will suffer feathered fury.

No spoils will be earned from their defeat, only swift death waits for you. Flee, FLEEE—ƎƎ˥Ⅎ

—Concerned villager