You probably don't worry too much about birds (other than what birds are at your feeder). However, around the world there are some birds that can prove extremely dangerous to humans. These in ...

Add Yahoo as a preferred source to see more of our stories on Google. A southern cassowary stands on a beach at Etty Bay in Queensland, Australia. These endangered birds can live up to 50 years.

Wondering about the most dangerous birds on Earth? We've compiled this list of the Top 20 scariest birds — some that have even attacked people.

Cassowaries are massive flightless birds, second only to ostriches in weight. Standing up to 6 feet tall, they can weigh up to 160 pounds! Instead of flight feathers, they have unique, hair-like ...