What feature defines the primary predatory mechanics of the terror bird's bill?
Answer
A sharp, downward-curving hook at the tip
Their beaks were massive, deep, and armed with a sharp, downward-curving hook at the tip, specialized for dispatching large prey.

Related Questions
What role did terror birds occupy in prehistoric South America?What is the approximate maximum estimated height reached by the largest terror bird species?To which order of modern birds are terror birds believed to share a distant kinship?What feature defines the primary predatory mechanics of the terror bird's bill?How is the terror bird's attack method theorized to have functioned?What common misconception surrounds the classification of Phorusrhacids?What geological event is closely correlated with the extinction of the terror birds?What was the approximate weight estimate for a large terror bird like *Paraphysornis brasiliensis*?For how long did the dominance of the *Phorusrhacidae* extend before their extinction?What feature of the terror bird's anatomy was adapted for terrestrial dominance?What does the family name *Phorusrhacidae* roughly translate to?