A cyclist died in Australia after being startled by a swooping magpie, a native Australian bird that gets aggressive in the spring around breeding season. CREDIT: Michael Dodge/AsiaPac/Getty Images ...

If someone ruins your day, it's really, really bad. It can be really hard to bounce back from something like that, and may even be impossible. The same typically doesn't go for animals; after a few ...

Whether a pet budgie or cockatoo, birds are not naturally aggressive. When they suddenly bite or shriek, they’re trying to tell you that they’re unhappy about something in their environment. In other ...

The study found that bird species who nest in tree cavities have independently evolved heightened aggression across lineages, particularly in females. Scientists have long wondered whether evolution ...