Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings. Birds are found worldwide and ...

Learn how to identify bird eggs by color and size. One of the most interesting bird egg facts that despite the broad variety in colors and markings displayed by bird eggs, just two pigments are ...

Black-and-white owls (Strix nigrolineata) are pictured at the Wildlife Rescue Center in Alajuela, Costa Rica, on September 16 ...