About 25,000 snow geese died after they landed on contaminated water in an open pit in Montana.
A bird named Obi flew with goggles and through a laser light to help scientist understand about flight research.
Birds that migrate the longest distances may actually be smarter.
The dodo bird may have been more intelligent than previously thought. Scientists have found that the overall size of the dodo's brain in relation to its body size was on par with its closest living relatives: pigeons.
How does direction hearing work in animals?
Study finds that giant, flightless bird with a head the size of a horse's wandered the Arctic 50 million years ago.
Penguin chicks may be vulnerable due to their parents' division of labor.
The world's oldest banded wild bird has given birth to a new chick.
Researchers find that New Zealand's 'little blue penguins' are Australian invaders that showed up recently.
Small birds apparently prefer flying with company.
Scientists have looked at camouflage and have found just how vital it is for keeping prey animals alive.