Northern cardinals, blue jays, American robins, and house sparrows are common birds throughout city life. These small, ...

They have big brains, long childhoods and sociable, curious minds. So why haven’t birds developed complex culture?

Big fossil birds such as Diatryma ... nicknamed “demon ducks” by some—lived on the island continent of Australia between 30,000 and 25 million years ago. And even on ancient North America ...

These aren’t just big birds– they show how nature adapts ... The emu is the second-largest bird in the world and is native to Australia. It can grow over 5 feet tall and weigh around 45 ...