They’re hundreds of species that live wild and free on nearly every continent, an entire cast of noisy and colorful birds that, before long, could keep flying under the radar and into extinction.

Parrots in the wild are becoming increasingly common in many European cities. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

All birds fly high in the sky, soaring to new heights in search of a home and food. However, while some are always visible to us-- like pigeons and crows-- others do not even catch the human eye ...