Other than dispose of decaying animals, regulate populations, spread pollen/seeds and act as prey for other predators they are goddamn adorable and smart. Not all, but some.
@MetalHeadTony, and shît on cars
@MetalHeadTony, Even if they're not adorable, all birbs are good birbs. Don't believe me? Look up the dude cuddling with his pet giant condor on YouTube. Like dogs, it's just about how you raise em.
Birds watch the general public for information to give to the U.S. government