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.

The term mid-size terror bird sounds kind of bizarre at first, as though terror birds, whatever they might be, come in a range of sizes, all of them a bit scary ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A bird watching app is suddenly popular ...